External drive slowdown

Hi, I have been using my Maxtor One Touch III 1TB external for a few months and all has been fine. But yesterday I experienced a sudden slow-down and it forced me to restart my Mac which is quite unusual these days (crashes are very rare). I was experiencing the spinning 'beachball' for lengthy periods and access to the drive was almost impossible. I then tried a few things - switched from my Firewire 800 cable to a USB 2.0, but no difference. Then tried both cables to my 17" Mac Powerbook and symptons very similar. I could access the drive (it is partitioned into a bootable back-up and a data back-up) and I ran Disk Utility on both partitions and both were classed as having 'no problems'. When I try to access on either the Powerbook or my G5 desktop, it takes several minutes for each to appear in the finder nad the when clicking on any of its folders, several seconds or minutes to display them. I'm not sure what to do, I've had to take it out of my desktop and it's an important part of my back-up system. If necessary I could reformat the 1TB but it would involve some data loss. Please can anyone help? Maxtor's support so far had been little use - offering me Windows defrag software and the like.

Thanks for the tip but I have just noticed that 'Repair Permissions' is greyed out. I have verified disc and one does have OSX installed (as it is a bootable backup) but it won't enable me to do it.
It's very frustrating, I have used Disk Utility to Repair both partitions and it still tells me there is no problem with either. Have tried an new USB 2.0 cable too.

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Started to run recovery disc assistant on a backup hard drve-stopped when it said it would erase all data-but now can't inialize the external drive nor repair it with disc utility?

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Creating multiple libraries and using an external drive for data

I'm a recent switcher and new to iphoto. On the windows platform, I used adobe album. I have a around 10k of images that I put on an external drive which is attached to my new imac. I deleted the iphoto folder and redirected it to my images on my external. All is working great. I'm looking for some advise on work flow of file/iphoto management. i.e. I'm assuming the more images I accumulate, the slower I photo is going to run? I hear you can create multiple iphoto libraries. Will that only load the photos that are associated with the library and I'm assuming optimize iphoto's performance versus always loading every photo you have taken every time you work in iphoto? If adding libraries is the way to go, can someone direct me to instruction on how to do this?
This may be beyond this threads scope but I plan to put all my data (iphoto, imovies, itunes) onto an external drive in order to keep the imac main drive as clean a possible. Is my thinking correct in doing so. Any negative repercussion in doing so?

Joe:
I'm assuming the more images I accumulate, the slower I photo is going to run?
You'll have to get quite a lot of photos into iPhoto before you start to see a real slowdown in performance. Users have reported libraries of 40K files and they perform just fine. However, do not keep all of rolls open as that will really do a job on the performance. Just open the rolls you need and close them all before quitting.
Yes, you can use multiple libraries and only load what's in each. I use iPhoto Library Manager to manage and move quickly between 10 libraries. With the paid version of iPLM you can move albums and/or rolls between libraries as needed and keep the keywords, ratings, and comments intact.
Using an external HD in order to maintain sufficient free space (10G minimum is what I recommend) on the boot drive to help optimize performance is a very good idea.
As far as any negative aspects, it would be a good idea to have a second external HD as a backup to the working external HD. You can't be too careful with those image files (and other important files) that can't be replaced.
Do you Twango?
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've written an Automator workflow application (requires Tiger), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.

Save Itunes music on internal or external drive?

My new G5 has plenty of free space in it's internal drive, and it seems natural to save the Itunes songs there since it's selected as the default drive. Yet, I've always been told to save all my media on an external drive, so that the computer processing power isn't slowed down. Does anyone have any thoughts on whether I should keep my Itunes library on my external drive or my internal drive?
Thanks, and Happy New Year.

I have had my music on the boot drive, a second internal drive and an external hard drive, and have found that with a G5, having the music on the boot drive results in the least amount of lag time from track selection to play, since that drive is almost always active.
However, since I have a very large music and video library, keeping it on the internal drive was not a good idea, so I moved it to an external drive. Although this was a 10,000 rpm firewire EIDE drive, there was still considerable lag time from selection to play. I ended up with a second internal SATA drive that has some lag time, but much less than the dedicated external.
I have never heard that having music on an internal drive slows down the processing power. I've never experienced any degradation of performance when iTunes was merely playing music, but if I was playing and managing music (creating playlists, importing tracks or adding art) at the same time, there was some slowdown between tracks until I added more memory (from 1 gb to 3 gb).
Good luck,
Lita

Setting up file system on external drives

I posted this in the Mac forum but see now
it probably belongs here.
Please evaluate this plan before I execute it:
Using Adobe Premiere:
I have two external drives, both partitioned.
External A will back up data permanently, and not be erased.
External B (partitioned) will receive the original data on
partition one (100G) and handle all the working project data
on partition two (400G)
Once once the project is complete, that information gets
backed up.
I will create a folder called Adobe on drive A and transfer
all data to it, right through to the Auto-Save folder. Then I
will dump the Adobe file off the internal drive. The Adobe
file currently resides in My Documents on the internal drive.
Does this make sense? Or is there another recommended
configuration I shoud know about? I have limited experience
with the program and don't really have a handle on the
paths. I am concerned that if I establish new pathways,
Adobe might get confused, although so far it appears
to be a lot smarter than I am. I don't see the chance
of this plan doing damage that can't be repaired. Can't
find diagrams online. Must be standard question for
PhotoShoppers.
Thanks for any input.
Ed Shaw

@Harm,
I added PP to my laptop for SD-only light editing. Though I have 3x 200GB SATA IIs in the laptop, I added a couple of 1.5TB externals via FW-800. As an experiment, I've edited a few Projects FROM/TO the externals, with no slowdowns. I am not arguing that eSATA is not the best way to go, just commenting on how surprisingly well, the FW-800 connections did. My newer 1.5TBs allow eSATA, so I'll probably add an eSATA ExpressCard and "kick it up a notch," or build an eSATA array. I do agree that externals are best used as backup.
I had attempted editing from FW-400s with another program and another laptop, and it was almost impossible. Imagine that USB would be even worse.
Hunt

Aperture library on external drive for multiple computers

I would like to store my aperture library and all masters on an external hardrive (with a backup). Ideally I'll be able to only transport this external drive to work to edit photos and return home to my personal computer and continue where I left off. I've tried something similar but ran into problems with lost adjustments, etc and am wondering what the simplest method is that others have discovered.
Cheers

All the editing work is stored in the *****.aplibrary file.
THe most obvious way will be to keep it on the external drive. If you experience it is to slow with USB you could probably have a better performance with FW800. Probably not so much with FW400.
I have no experience with ***-aplibrary on external drive. Probably ist it to slowdown the editing.
The best way to edit on 2 different macs will need in my opinion some extra preparation.
Set both Aperture in exactly the same way pointing to referenced files on the external drive.
Keep the *****.aplibrary file on the HD of the mac you are using and at the end of your work copy it somewhere (may be on the same external HD where you keep the referenced masters). Before starting to work on the second mac copy this ****.aplibrary on it. You will need to do the same reversed to go back to the other mac.
This will probably give you the fastest editing but you will need time to copy the *****.aplibrary files, may be a lot of time. Even if you use a program like Tri-Backup to do the copy you will se that even if the *****-aplibrary has few changes it takes a lot of time to overwrite the older copy.
Keep projects and libraryes as small as possible, or you will waste more time coping it compared to the more speed in editing.
This is only my opinion, and I am not 100% sure of it. I'm giving it to you only as a suggestion you could try and see if it works for you.
Regards
Walter

External Drive is no longer recognized by Macbook

I have this external drive....
http://www.amazon.com/Western-Digital-Passport-Essential-WDME2500TN/dp/B0012GK3M Q/ref=sr11?s=electronics&ie=UTF8&qid=1280159206&sr=1-1
It is about 60% full of music/pictures/documents that are NOT on my Macbook, therefore I use it regularly.
Every once in a while, I accidentally remove it without properly ejecting first. But I guess I did it one too many times because now the computer will not recognize it at all.
To insure that the drive wasn't corrupt, I plugged it into a PC. It worked fine. The files are all there and were completely accessible. But as soon as I plugged it back into the Mac, it won't show up.
When I try a Disk Utilities repair, I get the following message:::::
FIRST AID FAILED
Disk Utility stopped repairing “My Passport” because the following error was encountered:
The underlying task reported failure on exit
Verify and Repair disk “My Passport”
** /dev/disk1s1
** Phase 1 - Read FAT
** Phase 2 - Check Cluster Chains
** Phase 3 - Checking Directories
Unable to read directory (Input/output error)
Error: The underlying task reported failure on exit
1 non HFS volume checked
1 volume could not be repaired because of an error
I have NO $$$, so telling me to purchase a $30-100 program will not help me AT ALL. I'm looking for solutions that will not effect my wallet, even if they take all day to complete.
What can I do????????

Ok. Just to set one part straight- I doubt the problem came from unplugging your drive without ejecting. This usually isn't a problem unless files are writing or in use when you do it, but ejecting is a safe way to avoid issues.
Try force-mounting the drive in terminal by using the following commands
*mkdir /Volumes/yourdrivename*
this command should give you the location of the drive on your computer. (It should be something like disk2 or disk1s3) Then type the location into:
*mount /dev/yourdrivelocation*
Whether or not this works, follow up this step by ejecting the drive and unplugging and plugging it back in. This worked for me when I was having this issue.
Also- are you able to backup and reformat the drive? This would be a good thing to try if other attempts have failed.

[Guide] Install and run Windows 7/8 from an external drive without using bootcamp (works for late 2012 iMacs with 3TB drive)

This is a copy of a post from my blog, you can also Read it on my blog...
Introduction
After I received my new iMac with a 3 TB Fusion Drive, I was disappointed when I realized that Bootcamp was not running on this model and prevented me from installing Windows on it. I wanted to take advantage of the powerful iMac hardware to play games but I couldn't.
There are a few ways of working around this limitation, but I found most of them quite complex and most of the time they required formatting the internal hard drive or repartitioning it and go for a brand new installation of Mac OS X. I was not comfortable with that.
But there is another way, and that is to install Windows on an external hard drive, using either USB or Thunderbolt. Personally I used a Lacie Rugged 1 TB drive that has both USB3 and Thunderbolt connectors. Both work very well.
This guide may interest you if:
You have an internal hard drive of more than 2TB and you can't run bootcamp at all (like late 2012 iMacs with a 3TB drive)
You have limited space or you don't want to dedicate disk space on your internal hard disk drive to a Windows installation
What this guide will make you do:
It will make you erase all your data from your external USB3/Thunderbolt hard drive
It will make you install Windows on your external USB3/Thunderbolt hard drive
It will make you install bootcamp drivers
What this will not make you do:
It will not make you modify anything on your internal Mac hard drive
It will not make you use or install the bootcamp assistant
It will not activate the Preference Pane for the default boot drive. You have to boot by pressing the ALT key to manually select your boot drive each tome you want to boot Windows.
What you'll need
An external hard drive with a USB3 and/or Thunderbolt connector. This drive will be formatted so ensure you saved your files before going further. You can use either an SSD drive or a classic hard drive.
A Windows 7 or 8 install DVD or ISO (check whether to install 32 or 64 bits versions based on your Bootcamp drivers) and the corresponding Windows serial number.
One of the following:
Mac OS X with a Windows 7 or 8 Virtual Machine (use VMWare Fusion or Parallels Desktop for example. Note: VMWare Fusion seems to have some issues with Thunderbolt and USB3. Plug your drive to a USB2 enclosure or hub to work around this -it worked for me-, or use another VM software) → Read the important note below
A PC running Windows 7 or 8 → Read the important note below
Windows AIK (free) running on your Virtual Machine or on your PC, or just the imagex.exe file (the rest of the Windows AIK package is not needed)
Download imagex.exe
Download Windows AIK (this download and installation is not required if you have already downloaded imagex.exe)
Bootcamp drivers for your Mac. You can get these either by running bootcamp from your Mac (Applications > Utilities > Bootcamp) or, if like me you have a 3TB drive and can't run bootcamp at all, use the direct download links here.
A USB stick to store your bootcamp drivers
IMPORTANT: If your Mac has a 64 bits processor, your Windows Virtual Machine on OSX, your Windows installation on your PC and your Windows DVD/ISO must also be in 64 bits!
Step by Step guide
Step 1: Get the install.wim file
If you have a Windows ISO file:
Mount the ISO
If you're on OS X: double click on the ISO file
If you're on on Windows 7: Use a software like Virtual Clone Drive (free)
If you're on Windows 8: double click on the ISO file
Open the mounted drive, then go to the "sources" folder and locate the "install.wim" file. Save this file to C:\wim\ on your Windows installation or virtual machine.
If you have a Windows DVD: open the "sources" folder on the DVD and locate the "install.wim" file. Save this file to C:\wim\ on your Windows installation or virtual machine.
IMPORTANT: If instead of a "install.wim" file, you have "install.esd", you can not continue this step by step guide. And an ESD file can not be converted into a WIM file. So you must get a version of the Windows installation DVD/ISO that has an install.wim file.
Step 2: Clean, partition and format your external hard drive
On your Windows installation or virtual machine, plug in your external hard drive (can be plugged using USB2, USB3 or Thunderbolt at this stage)
Open the command prompt in administrator mode (cmd.exe). To run it in administrator mode, right click on cmd.exe > Run as admin.
Type the following and hit enter to open the disk partitioner utility:
diskpartType the following and hit enter to list your drives:
list disk
This will display a list of disks mounted on your computer or virtual machine. Make sure your drive is listed here before you continue.Identify the disk ID of your external hard drive. Replace # by your real external disk ID in the command below:
select disk #Clean all partitions by typing the following (warning: this will erase all data from your external drive!):
clean
Create the boot parition by typing the following followed by the enter key:
create partition primary size=350
This will create a 350MB partition on your external driveFormat the partition in FAT32 by typing the following:
format fs=fat32 quick
Set this partition to active by typing:
active
Assign a letter to mount this partition. We will use letter B in our example. If B is already used on your PC, replace B by any other available letter:
assign letter=b
Windows will detect a new drive and probably display a pop-up. Ignore that.Create the Windows installation partition using all the remaining space available on the external drive by typing the following:
create partition primary
Format the new partition in NTFS:
format fs=ntfs quick
Assign a letter to mount this partition. We will use letter O in our example. If O is already used on your PC, replace O by any other available letter:
assign letter=o
Windows will detect a new drive and probably display a pop-up. Ignore that.Exit the disk partitioner utility by typing:
exit
Step 3: Deploy the Windows installation image
Still using the command prompt in admin mode (you didn't close it, did you? ), locate the imagex.exe file mentioned in the "What you'll need" section and access its folder. In our example, we have put this file in C:\imagex\imagex.exe
Type the following and hit enter (remember to replace o: with the letter you have chosen in the previous step):
imagex.exe /apply C:\wim\install.wim 1 o:
This will take some time. The Windows installation image is being deployed to your external driveOnce done, type the following to create the boot section (remember to replace o: and b: with the letters you've chosen in the previous step):
o:\windows\system32\bcdboot o:\windows /f ALL /s b:
If you get an error message saying that you can't run this program on your PC, then most probably you are running on a 32 bits installation of windows and you're trying to deploy a 64 bits install. This means you did not read the important notes in the beginning of this guide
If you get an error message on the options that can be used with the BCDBOOT command, then it's because you're installing Windows 7, and the /f option is not supported. If that is the case, remove /f ALL from the command and retry.
Step 4: Boot from your external drive and install Windows
Plug in your external drive:
If you've done all the previous steps from a Windows PC, unplug your external drive from your PC and plug it to your Mac, either on a USB3 or a Thunderbolt port.
If you've done all the previous steps from your Mac using a Virtual Machine, ensure the external drive is plugged in to a USB3 or Thunderbolt port. Using USB2 should also work but you'll get very poor performance so I don't recommend doing that.
Reboot your Mac and once the bootup sound is over, immediately press the ALT (option) key and release it only when the boot drives selection screen appears. If you did not get the boot drives selection screen, reboot and try again. The timing to press the ALT (option) key is quite short. It must not be too early or too late.
On the boot selection screen, choose "Windows" using the arrow keys on your keyboard, then press enter.
The Windows installation starts. Follow the on-screen instructions as normal. The installation program will restart your computer one or 2 times. Don't forget to press ALT (option) right after the bootup sound, and boot on Windows again each time to continue the installation.
Step 5: Install bootcamp drivers
Once the Windows installation is complete, plug in the USB stick where you stored the bootcamp drivers (see "what you'll need" section), open it and right click on "setup.exe" and select "Run as admin". Follow the on-screen instructions.If you have an error saying that you can't run this program on this PC, obviously you have installed a 32 bits version of Windows and the bootcamp drivers for your Mac are made for a 64 bits version. You have to restart the whole guide and make sure to get a 64 bits version of Windows this time!
Once the bootcamp drivers are all installed, reboot and press ALT (option) after the bootup sound to boot on Windows again. And Voilà, you have Windows installed on your USB3/Thunderbolt drive running on your Mac.
Now each time you want to boot on Windows, press and hold the ALT (option) key after the startup sound and select "Windows", then press Enter.

Hi i'm trying to follow your guide, I installed windows 8 on bootcamp to do it planning to remove it after the operation is done, but i get stuck at part 3: every command i give to imagex i get a pop-up ftom windws asking how do I want to open this kind of file install.wim and imagex does nothing, what do i have to do to stop those pop-ups?

Format and partition external drive if you want dual use Mac / PC

I had purchased from the Apple store in France a portable hard drive Iomega eGO USB 2.0/FireWire ov 250 Go capacity (P/N 31713900; Model: RPHD-C; S/N: FEAJ02011V)
Originally formatted HFS+, it would mount on any of my Mac desktops with Firewire, easily on the iMac using USB and with great difficulty on the iBook with the two USB plugs (together). It did not mount on any windows PC I had used for tests (so reformatting it FAT(32) or NTFS was *not an option).
I had reformatted it FAT32 using the iMac under mac OS 10.5 for use on multiple computers including Windows PC's. The drive would now accept to:
Mount on the iMac and iBook using Firewire
Mount on the iMac using USB, but it will NOT:
1 - Mount on the iBook using USB, nor
2 - Mount on any Windows PC using USB
The solution was found at the office with our IT helpdesk.
Whether I format it FAT 32 or NTFS (using the Paragon NTFS for mac OS X 10.5) on my iMac under OS 10.5, including when I do the same on another external drive than the Iomega, the PC would not recognise it while it would always mount on a Mac and it was even impossible on the PC to reformat it. The solution is (at least in windows world), you need to (1) format the drive, AND (2) partition the drive, even if this involves creating a single partition. Using Disk Utility of the Mac, I had only formatted the drive and not partitioned it into a single partition and Disk utility did not request that from me. The drive as prepared was perfectly usable on any Mac anyway.
The cure was to go back to the imac which had formatted it, mount it (it mounts), (1) reformat and (2) partition, using a single partition.
Then, the drive would instantly be recognised on the PC as a F drive, whether under FAT 32 or under NTFS.
The blame is in me and on the Apple Drive utility which did not help me (trust it would have been worse in windows world, but this is a bad mark on disk utility)
My suggestion to Apple would be that Disk Utilisty should tell us, once we have formatted a drive (HFS+, FAT 32 or NTFS using Parangon) that we are not done yet and still must create the partition(s), even if we only need one partition.
HTH

Hi Michel-Ange
You are talking to other user like yourself here and not Apple. If you wish to make a suggestion to Apple, I suggest you do it at this site - http://www.apple.com/feedback/macosx.html
Allan

I have an itunes library on an external drive I want to use on a dool boot computer. How do I set this up without duplication of files

Ok, here goes with the explanation. I am running a Mac Mini mid 2010 with mt iTunes library on an external USB drive. I dual boot the computer into Windows 7. I want to be able to use the same iTunes library in both Operating Systems. I am trying to set this up on the Windows side without accidentily erasing, moving or duplicating any files. In the past when I have tried I have ended up with multiple files. I have an iCloud also but do not want to download any files again. How can I get iTunes on Windows to simply recognise my existing storage and create a library list from what is already there rather than duplicating files?
Update: As soon as I signed in with my iTunes account iCloud picked up my playlist and now lists all my music. Right clicking on the songs give me the choice to download the files, but the files already exist oin my external USB. I simply want iTunes on Windows 7 to point to the existing files.

How is the external drive formatted?
Allan

UPS Energy Saver on MacBook Pro for External Drives

A search here has shown this topic come up before -- such as at https://discussions.apple.com/message/1886738#1886738 and https://discussions.apple.com/message/8162836#8162836 -- but I can't find a resolution, so I'm bringing it up again.
I have multiple FW drives connected to my MacBook Pro. The MBP is connected to an APC Back-UPS RS 1200. OSX does not make the UPS Energy Saver autoshutdown preferences available on the MBP, the reasoning being that a laptop shouldn't need UPS autoshutdown because it has its own battery which is likely to run for far longer than the UPS would.
That's all well and good for the MBP itself, but it doesn't account for the multiple FW drives which are attached to it for backups and other purposes. In the event of a power outage, without UPS autoshutdown, the UPS will run down, and the drives will abruptly power off, exposing them to potential data loss and damage.
It's also not a solution to suggest that I manually power things down once there's a power outage, because the power can go out while I'm away for more than the few minutes of UPS battery back up time. The only real solution is to have UPS autoshutdown available on all portable machines. Unless and until Apple offers a (surely very simple) OS update to make that happen, I'm still interested in a solution.
APC's own software for autoshutdown stopped being updated long ago, so there is no version compatible with Snow Leopard.
The only potential solution I've found so far is http://www.apcupsd.org/ -- but its documentation is overwhelming and it appears that it may need other supporting software, a fair amount of Terminal usage, etc., all making it not very user-friendly for the very simple usage I'd want to make of it.
Does anyone know of any other solutions, software that can run on a MBP to add UPS autoshutdown functionality?
Re: Apcups, is anyone using it successfully on a MBP? If so, does anyone know if the version listed here -- http://mac.softpedia.com/get/System-Utilities/Apcupsd.shtml -- is a simple application that I can easily install and configure like regular Mac apps? If yes, then I'll likely be very happy with no need for the following question. If no, can anyone provide simple instructions to set up Apcupsd to do what I want?

"You are not doing anything on the computer so no files should be writing to the drives."
Big assumption there. With today's notebooks so capable of acting as desktop substitutes, they are often left running unattended to complete demanding tasks overnight or while the user does other things.
To be able to suspend such activities and gracefully power down an external drive or drives in the event of a power outage, the Mac would have to have instructions from each third-party application or process that is running about how to interrupt its activity safely and without jeopardizing the integrity of whatever hard disk directories are in use. Then it would need to unmount the drive(s) and, if they were bus-powered drives, turn off the power to each of them at the port to which it was connected. I bet it would be possible for all app developers to write such instructions into their apps' code, but where's the incentive for them to do so? This isn't a feature that most users would gladly pay extra for, I suspect, and the cost of adding it to apps that don't have it now and testing it for reliability and proper function under all conceivable circumstances would not be trivial.
If the drive(s) were AC-powered, the computer wouldn't be able to power them down itself -- the UPS would have to do that, or simply leave them on and power them until its battery was depleted or the AC was restored. It wouldn't matter which happened as far as the drives and their contents were concerned, because once the computer stopped using them, powering them off would be safe at any time.

Using a seagate external drive with multiple macs

i got a 1TB seagate external hard drive for backup and transfer purposes... it had a little program to help set it up and i set it up for use with mac and pc ( only onther option was stricty this computer.) it works on my computer and a pc but when i tried transfering files from another older mac i have it showed that i could only read on that computer...
how can i get it to work with multiple macs...?

I have the oldest macbook (1.83. 2 gigs ram, 60 gig internal hard drive)
I have all my logic content on my external maxtor firewire 400 drive (usb 2.0 is actually faster than firewire 400) and everything is fine. the good thing is if your external drive has 7200rpm, but the ones with 5600rpm should do as well.
Once you drag your apple loops to logic from your external drive, logic will remember for the next visit. And when you are opening a project which is on the external drive , just find it with logic finder and all should be fine.

How can i get to itunes to store all data on an external drive

how can i get to itunes to store all data on an external drive rather than the drive ITUnes run off. I can get photos and music off but my apps and movies seem to go to the drive where itunes is run from?

See if this helps:
http://support.apple.com/kb/HT1364

Sharing music on two computers with one external drive

I'm a Mac. My wife is a PC. If we both link to an external drive and put all of our music on there, can we both access it from our own separate iTunes accounts via file sharing? Will she be able to put music I've downloaded on her iPod? Will I be able to do the same? So far she hasn't downloaded any of her own music onto her computer so if she were to remove her current iTunes from her computer and reload it using my account name, would we both be able to have full access to music both imported and downloaded from both computers? Sorry for the questions on top of questions, but while there are a lot of other posts and articles similar to this one, I haven't found what I'm looking for. Thanks!

Yes, sorry for piling on. 1st question: Would having her remove iTunes on her PC and reload it under my account name to be able to access my iTunes library on an external drive work?

How do I find and free the hidden files on external drive?

I cannot see , or free, space on my external drive.
It is a Seagate Freeagent 500 GB disk. I am using 100GB for photos and music. Only 38 MB are reported free. How can I reclaim the rest of the space?
I had used in the past as Time machine backup. To create space I moved to trash the file Backups.backupd (as I now have another disk for Time Machine). I can't see this file in the Trash, and I can't see the space in Finder. How do I find / free the space?
The disk format is MAC OS Extended journaled. Disk utility reports no errors. I have run verify and fix, and also erase free space, with no result.
Thank you for your help.

Erase free space only wipes clean the 38 MBs that are already free. Click here to see hidden files.
However, I'd just make a copy of the 100 GBs in use, and then complely wipe the disk.
Don't try to delete the Backups.backupd folder by Finder. It's not a good idea to mix Finder and TM.

External drive slowdown

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