"This disk is not recognized by this computer"

I have a FireWire LaCie external disk, that suddenly stopped working.
Did some copying of files and then I discovered some folder were missing.
Then I restarted and got the message "This disk is not recognized by this computer. I did choose Igonre and when I run Disk Utilty I get this message:
Verify and Repair disk “disk1s9”
Checking HFS Plus volume.
Catalog file entry not found for extent
Volume check failed.
Error: The underlying task reported failure on exit
1 HFS volume checked
1 volume could not be repaired because of an error
What shall I do? I'm panicking, since there are life-important (almost) files on the disk.
I have Data Rescue II - do I dare to run the program, or shall I take the disk to a company??

Bought the Data Rescue II, have restored most of the files. I think so, at lest. Many orphans, but at least they do have their names intact, and I have a pretty good idea where to put them. I only hope that the PSD files are intact too, all my video assets are on Beta and can be re-captured if needed.
Tanks for your tip!
It's the SECOND failure today - first I replaced an existing folder with an empty one and copied another 40 GB of files to the disk. Not much to rescue there...
And then this happens. Not having a good week so far.

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Ipod classic 120 stuck in disk mode, not recognized by windows or itunes

so ive been havin tons of problems with my new ipod 120 classic
first one day when i plugged it in it told me it was corrupted and needed to be restored
then it would not restore
i formated it with windows but that didnt seem to do anything
the other night somehow i got it to the point of naming my ipod but after that, it stopped working again
for a while i couldnt even put it into disk mode
now, when it is plugged into the computer it is stuck in disk mode, yet not recognized by the computer or itunes
it makes the sound when i plug it in but never shows up
also, when its not plugged in, it starts up and just brings me to a screen that says use itunes to restore. but then i plug it in and it goes right to disk mode and do not connect, and isnt recognized
when i unplug it i can see it pop up on my computer for that one second i unplug it
ive tried this on a number of computers and it does the same thing
when i unplug it from being plugged into the computer it just sits in diskmode saying ok to connect
if i reset it by pressing center and menu, it just goes back to the use itunes to restore screen
i cant get it to enter diagnostic mode, and when i hit center and play after center and menu it does nothing either
ive just about had it with ipods
this is my 3rd or 4th classic that i have had problems with
apple should be ashamed of themselves for such a buggy product for so much money, and very very crappy service
any help greatly appreciated....but im prety sure ill be moving onto another product after this
luckily i am still under warranty so they offered for me to send it in....but then i am without music for about a week
i feel i should be compensated for that alone, aside from just fixing it for me
please help me fix this so i can get back to some tunes!
thanks for any info

1. Turn off iPad. Press and hold the Sleep/Wake button for a few seconds until the red slider appears, slide to turn off.
2. Connect USB cable to computer
3. Press and hold the Home button down and connect the docking end of cable to iPad
4. Continue holding the Home button until you see the "Connect To iTune" screen
5. Release the Home button
6. Open iTune (make sure you have the newest version of iTune)
7. You should see "iTunes has detected an iPad in recovery mode"
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Note: You need to be patient and repeat the above many times to recover your iPad

My iPod Shuffle 4th generation 2GB is not recognized by My Computer in Windows or under Devices in iTunes.

Everyone has the same problems. My iPod has been plugged in properly, I have followed all the support suggestions but nothing works. HELP PLEASE!

I have downloaded that utility but can not use it, as
when I plug the shuffle into the USB port, it is not
recognized by either computer I am using. I can not
reset or restore, because in order to do that the
computer would have to know the shuffle is plugged in
and it doesnt. I have tried this on two different
computers and get the same result, so I dont think
its a computer issue, its an ipod issue. I also used
to be albe to play the shuffle on the Xbox 360 and
now can not.
Just as a check, did you actually follow the THESE directions...EXACTLY?
Using iPod shuffle Reset Utility
1. Quit all running applications on your computer.
2. Open the iPod shuffle Reset Utility.
3. Connect iPod shuffle to a USB port on your computer. Do not connect iPod shuffle to a USB port on your keyboard or other non-powered USB hub.
4. Click the Restore button. If prompted, enter an Admin user name and password.
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My iPod classic is not recognized by my computer or iTunes

My iPod is not recognized by my computer or iTunes. It worked fine a few months ago but now it doesn't even sync. I tried everything from turning it on/off, reinstalling iTunes, checking the connectivity issues and etc. After going through the connectivity test the only thing I found odd was that it said that the iPod classic running firmware 1.1.2 is not connected. Could that be the issue? And if so, how can I get that firmware running again?

I have the same issue with my ipod classic, and have gone through these steps. However, when i come to the step where it says to reinstall: "
Next, open the new version of iTunes and connect your iPod to your computer.
Select your iPod in the source list and click "Check for Update" under the Summary tab. iTunes will check to see if your iPod needs to be updated and perform the update for you. "
there is no ipod listed in the source list to check for any updates under the summary tab. Itunes just DOES NOT see the ipod at all. And this is where I am stuck....further instructions PLEASE!!! Thank you....

Ipod shuffle is not recognized by any computer or itunes

I have a first gen. ipod shuffle. It does not show up in Windows or Itunes on two different computers. The original problem was that it would not skip to the next song. I was going to reset or restore it, but I can't because neither computer (dell) that i own recognizes the shuffle. Help anyone?

I have downloaded that utility but can not use it, as
when I plug the shuffle into the USB port, it is not
recognized by either computer I am using. I can not
reset or restore, because in order to do that the
computer would have to know the shuffle is plugged in
and it doesnt. I have tried this on two different
computers and get the same result, so I dont think
its a computer issue, its an ipod issue. I also used
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Just as a check, did you actually follow the THESE directions...EXACTLY?
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1. Quit all running applications on your computer.
2. Open the iPod shuffle Reset Utility.
3. Connect iPod shuffle to a USB port on your computer. Do not connect iPod shuffle to a USB port on your keyboard or other non-powered USB hub.
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My ipod not recognized by the computer or itunes?

Ok, the iPod works fine playing music and watching videos and everything else it is supposed to, and it charges fine. But when i plug it up my PC to sync new music, the screen on the iPod does like normal and goes to the gray and orangeish screen that says Connected, then immediately says Disconnecting iPod and shows the little progress bar as if you had ejected it. How can it do this on it's own before anything has recognized it?
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"Windows cannot use this hardware device because it has been prepared for "safe removal", but it has not been removed from the computer. (Code 47)"
These errors occurred two days again until now, i have made no recent updates on my computer or iPod to have damaged anything but these problems randomly occur. it's really odd and if someone could help me it would be great.

Have you carefully worked through each and every suggestion in this Apple support document?
iPod not recognized in 'My Computer' and in iTunes for Windows
B-rock

Ipod Nano not recognized on my computer

My iPod Nano doesn't show up on My Computer or in the ITunes store under devices.
A popup recommends reconnecting the device but it does not help. It then says to uninstall and reinstall Itunes.
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Try one or more of the following
> Restart your computer
> Uninstall & Reinstall iTunes - Windows XP | Windows Vista or 7 | Mac OS X
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> Restore iPod (will delete everything)
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Extra Links:
iPod not recognized in 'My Computer' and in iTunes for Windows
iPod: Appears in Windows but not in iTunes
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IPod shuffle 4th generation is not charging, not recognized by my computer and laptop (Windows 7) and does not show up in iTunes

I have done all the troubleshoots and reset functions but my iPod shuffle is still not working. Every time I plugged my iPod it only shows red light that lasts for about 3 seconds and will disappear after some time. I've been using the same computer and laptop back then, and it stopped working since the last week of October.

Hello Erickson Gudelano,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
iPod not recognized in My Computer and in iTunes for Windows
http://support.apple.com/kb/ts1369
Best of luck,
Mario

HT1853 My ipod is hooked up to the computer but not recognized by my computer or by i tunes but it still says do not disconnect please help!!!

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Hi greyangel23,
I have an article for you that will help you troubleshoot this issue with your iPod not being recognized:
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http://support.apple.com/kb/ts1369
Thanks for being a part of the Apple Support Communities!
Regards,
Braden

My external hard drive is not recognized by my computer.

My external hard drive is not recognized by my computer. I used it earlier and it was fine however my computer froze and I unplugged my hard drive without properly ejecting it. Now when I plug it in nothing pops up. I've tried on three different computers and no luck. I hope this is fixable! Please help.

Care to share which OS you are using?
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IPod not recognized by new computer

I downloaded iTunes and plugged in my 2009 ipod into my new computer. It is not recognized. Message says: USB device not recognized. It is fully charged and contains music I don't want to loose. Please advise on the steps to correct this. Thank you!

Hi LoisPadgett,
Thanks for using Apple Support Communities. If iTunes doesn't recognize your iPod classic, this article may help:
iPod not recognized in My Computer and in iTunes for Windows
http://support.apple.com/kb/TS1369
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TS1410 my ipod is not recognized by my computer

my ipod is not recognized by my computer?

I realize this question is six months old, but just in case this helps someone. My PC suddenly decided not to recognize my IPod. I jumped through all the hoops for 24 hours trying all the suggestions and then just sat and took inventory of everything notable that was different from the last time I had synched it (a year earlier). I'd finally freed myself of Norton and installed Avast and several sites mentioned that as a possibility but no. In the end it was the new HP Officejet Pro 8600 software. I did a custom install and opted for the USB rather than wireless hookup. First off it took my old Canon scanner hostage and choked it into retirement. Then it started fondling Photoshop and searching for images in every file it could access. But the best trick was that it will just not let you synch your IPod for love nor money. Now I am a dinosaur and still use XP but I'm pretty sure the same thing happens with Windows 7. Fortunately, the fix is easy enough ***doink***, yank the printer's USB cable out of your PC and everything is fine.
Just posted this in the hope I can save somebody else a day's worth of cursing and hair tearing...PB

My ipod is not recognized by mi computer

I' dont know what's the problem with my ipod. When I connect it in the USb port in my computer it is not recognized by mi computer or itunes, I've already checked in the devices manager and it doesn't appear. But it always starts to charge. What should I do to solve this problem.

http://docs.info.apple.com/article.html?artnum=300836
http://docs.info.apple.com/article.html?artnum=305136

My ipod video is not recognized by the computer what should i do/

my ipod video is not recognized by the computer what should i do?

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What happens if you try to reset the device with it still connected to the PC?
How to reset iPod
Has this iPod ever worked on this PC or is this the first time you have time you have tried connecting it?
Have you carefully worked through each and every single suggestion in this Apple support document?
iPod not recognized in 'My Computer' and in iTunes for Windows
B-rock

My ipod touch is not recognized on my computer?

my ipod touch(3rd generation) is fully charged, but the screen says connect to itunes, when i go to connect, it is not recognized on my computer?

Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- Try another cable
- Try on another computer
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar
Then as necessary
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Or
See
iOS: Device not recognized in iTunes for Windows
- I would start with
Removing and Reinstalling iTunes, QuickTime, and other software components for Windows XP
or
Removing and reinstalling iTunes and other software components for Windows Vista, Windows 7, or Windows 8
However, after your remove the Apple software components also remove the iCloud Control Panel via Windows Programs and Features app in the Window Control Panel. Then reinstall all the Apple software components
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paying special attention to item #5
- New cable and different USB port
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Also see:
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Troubleshooting issues with iTunes for Windows updates
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"This disk is not recognized by this computer"

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