Disk utility creating .cdr and .iso

We have thousands of DVDs created in house at our company. We are using Disk Utility to create images of all these DVDs for archiving to tape. We select the format as CD/DVD master and no encryption. The odd thing however is that it seems randomly Disk Utility will create a .cdr and a .iso file in one step. Anyone know a reason DU would do this, and how to stop it? Thanks

copied this from disk utility log:
2009-08-22 23:37:56 -0500: Disk Utility started.
2009-08-22 23:39:43 -0500: Creating Image “Movies.dmg”
2009-08-22 23:39:43 -0500: Initializing…
2009-08-22 23:39:44 -0500: Creating…
2009-08-22 23:39:46 -0500: Copying…

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I have an external hard drive that shows up in disk utility but Verify and Restore are greyed out.

I have an external hard drive that shows up in disk utility but Verify and Restore are greyed out. I am trying to determine what is wrong with the drive.
I need the data on the drive and it won't show up in Disk Warrior. I have tried different Mac's and different USB cords only to find the same outcome. When selected in Disk Utility the information read as such...
Disk Description : WD Elements 1023 Media                      Total Capacity : 500.11 GB (500,105,740,288 Bytes)
Connection Bus : USB                                                               Write Status : Read/Write
Connection Type : External                                                     S.M.A.R.T. Status : Not Supported
USB Serial Number : 575837314135304D36373132        Partition Map Scheme : Unformatted
As the drive shows in Disk Utility there must be some life left in it surely. There is a possibilty that the physical connection between the USB cord and the external drive is damaged but since the drive shows up I believe it's unlikely... before I give it to the pro's is there anything else I can do to diagnose the issue?

Hello,
I have just experienced the same thing!
Although my external drive shows in Disk Utility, it does not show in Finder.
And the Verify/Repair buttons are also greyed out.
Also, although the drive is 2TB. DU shows it as having Total Capacity of only 4.14GB! (Which should be the Free Space).
I was wondering if you solved your problem, & if so, would you share your solution.
I´m afraid to Erase in case I lose all my Data on the drive.
Thanks in advance for your reply!

I know my back up exists I can see it on disk utility but migration and disc utility wont work to restore my back up on my new hard drive it shows up with the message "this disk is already in use" i am so done. someone pls help me

I know my back up exists I can see it on disk utility but migration and disc utility wont work to restore my back up on my new hard drive it shows up with the message "this disk is already in use" i am so done. someone pls help me

Otherwise software may be attempted to access the drive. The the computer up in Safe Mode by holding shift when you turn it on. Also be sure to power off and on the hard drive itself.

Disk Utility gives error and does not rebuild mirrored RAID

After having a HDD fail on a mirrored RAID I replaced the HDD and attempted to rebuild. Disk Utility reports via Console that it can not find an Apple Boot partition to check size and then fails to repair the RAID. Details follow.
Mac OS X v.10.4.8 Server
Power Mac G3 (Blue & White)
512MB RAM
20GB ATA HDD – boot device on internal ATA bus
4x 160GB ATA HDDs - setup in RAID scheme on Sonnet ATA/133 PCI card
RAID configured using Mac OS X v.10.4.8's Disk Utility and is an Apple RAID version 2.
RAID scheme <from "diskutil checkRAID" cmd>:
Welcome to Darwin!
[myserver:~] myadminuser% diskutil checkRAID
RAID SETS
Name: Mirror_2
Unique ID: 5FF8AD5F-0892-482D-B430-C7069D63AFD2
Type: Mirror
Status: Online
Device Node: disk3
Apple RAID Version: 2
# Device Node UUID Status
0 disk0s3 1FB48B00-3E52-4C29-8F05-2ED8BDAE4544 Online
1 disk6s3 BF2E69C6-698E-4D6A-A2A9-FE8CDAD8A7B1 Online
Name: Mirror_1
Unique ID: B448A09D-EC10-41EE-BA45-4D4071A88EA5
Type: Mirror
Status: Degraded
Device Node: disk5
Apple RAID Version: 2
# Device Node UUID Status
1 disk2s3 09AD5705-CF67-48B3-8E31-79983BD4781A Online
0 disk4s3 23EB1952-8B18-4400-A6FE-22C2F707C097 Failed
Name: StorageRAID1
Unique ID: 2B8349AB-F553-4FD2-8440-C575791DA858
Type: Stripe
Status: Online
Device Node: disk7
Apple RAID Version: 2
# Device Node UUID Status
0 disk3 5FF8AD5F-0892-482D-B430-C7069D63AFD2 Online
1 disk5 B448A09D-EC10-41EE-BA45-4D4071A88EA5 Online
I configured this RAID scheme (two two drive mirrors striped together) according to this kbase document: http://docs.info.apple.com/article.html?artnum=304377
As shown in the above "diskutil checkRAID" output I have a failed HDD. So I replaced the HDD with another 160GB cold spare. I added the new drive to the mirror "Mirror_1" also known as disk5 and hit rebuild. Received the normal message that all data on the new drive I was adding would be erased.
I then receive the following error immediately in the Console Log:
Rebuilding RAID "Mirror_1"
2006-12-15 23:50:24.741 DiskManagementTool [375] WARNING: Could not find Apple Boot partition to check it's size, skipping disk5s-1s.
Rebuilding RAID slice "disk4s3"
Just to stem some confusion, the device ID disk4s3 has been used by the system for both the old failed HDD and the new replacement HDD.
The result of this attempted rebuild is I end up with all the data from Mirror_1 on the new HDD but the new HDD is not successfully added to the RAID, therefore Mirror_1 is still degraded and my problem not resolved.
I ran the appropriate rebuild cmd from both the GUI Disk Utility as described and from the CLI "diskutil repairMirror disk5 disk4s3" but no joy.
Any help would be greatly appreciated. This volume houses a large amount of important data including user home directories so while some offline time may be required data loss would not be very acceptable.
Thanks in advance and I will be happy to provide more information as necessary.

I guess doing it in Terminal would fail too:
diskutil repairMirror disk5 disk4

Disk Utility - create ISO Data DVD image for burning?

Which are the exact options in Disk Utility that I need to select, in order to create an ISO DVD Data image that will be readable by PCs and Macs alike?
I have looked on the web and in the help but am none the wiser due to lack of an explanation of the options
Format: Mac OS Extended (journaled),...,MS-DOS (FAT)
Partitions:Single partition - Apple Partition Map,...,Single Partition CD/DVD with ISO data
If you cannot point me in the direction of some decent documentation, please just tell me which options I need to select to create an ISO Data DVD
Thanks

Try this link.
Basically, you can drag a folder into the list on the left. Then, with the folder selected, click New Disk Image from the toolbar at the top (not sure of the exact wording, but it's something along those lines). Make sure to select ISO from the pop-up menu.
Also try this article to convert a DMG to ISO.

Disk Utility crashes attempting burn .iso

I'm a very new user of a PPC G4 that I came across and have no experience of these machines. It's running OS X 10.3.9. I've installed Ubuntu with dual boot on a separate drive OK but had to burn the Ubuntu .iso installation CD on a system running XP. Articles I've read tell me that Disk Utility should be able to do this by dragging the file name into the left pane and selecting Burn. This works OK with a .dmg file but when a .iso file is used (any .iso, not just Ubuntu) Disk Utility crashes with an unspecified Internal Error. The CD burned form the .dmg does not boot, so is of no use for installation purposes. Any help appreciated.
John

You may be able to use a simple Burn utility that makes
either CD or DVD media recordings on blank media for
use in either Mac &/or PC format. Not sure if one can
simply use a utility such as this:
• Burn - home:
http://burn-osx.sourceforge.net/Pages/English/home.html
• CharlesSoft - has an app called BootCD that may work:
http://www.charlessoft.com/
• How to create a Bootable CD in Mac OS X - FAQ:
http://www.index-site.com/bootcd.html
There are limitations and some restrictions, after a fashion,
that slow the idea of making a copy of a Mac OS install disc.
+(Copyrights, end-user-rules, conditions of use, etc will apply.)+
That is another matter; one method includes Disk Utility, &
for large size systems, a Dual-Layer DVD recorder is needed.
To make a workable copy of your non-Mac unix OS disc
and have it be a bootable copy. The format of the media
has to be correct. As does the method of copying an image.
Some kinds of items require making a Clone, not an Image.
There are some rules to make a copy of an OS disc bootable;
even so, the rules for a non-Mac system could be different.
Hopefully some ideas of how to accomplish the task can be found.
Good luck & happy computing!

Disk Utility Burning CDs and DVDs Windows Compatibility

I don't burn many CDs or DVDs. However, a friend of mine recently switched to Apple, and he burns quite a few movies and CDs. He asked me how to copy DVDs, burn Audio CDs, and save files to CDs and DVDs. The only thing I knew how to do was to burn files to CDs. I know that CDs that are burned in the Finder will work on Mac OS and Windows. My question is about Disk Utility. I've read that Disk Utility does not create Windows compatible disks, however Apple's instructions for making a copy of a movie DVD are to use Disk Utility and create a CD/DVD master image to burn to a DVD. Disk Utility uses the .cdr format, which supposedly does not work with Windows. So, if I wanted to copy a Windows application CD, could disk utility make an exact copy of it or not? It seems to me that it should since I am making an exact copy using CD/DVD master, but will it do it or not? Also, if I made a copy of a Movie DVD using CD/DVD master (.cdr) will it only play on Macs or will it play on Windows also? When it comes to Audio CDs, I realize one must use iTunes to make Audio CDs. I have searched all over the internet for answers to these questions and most people say use Roxio Toast or they just don't answer these questions very clearly.

If you have two optical drives connected to your computer, you can just clone the disc. However, I'd recommend Roxio Toast, as others have, because it'll handle all the compatibility issues for you. Dealing with Finder and Disk Utility guarantees compatibility with macs, but not necessarily Windows, or even standard DVD/CD players depending on how you burn it.
If you have audio files, use iTunes to burn an audio CD. If you have movie files, use iDVD or Toast to burn a standard DVD (not a data disc).

Disk Utility create encrypted disk image hangs

I'm trying really, really hard to backup my data but apple is not making it easy for me.
I need my files encrypted for an offline backup. Time machine only allows home folder to be encrypted, and due to my home folder being on my SSD drive I cannot fit my files all in there, not by a long shot.
Using Disk Utility, I choose "new disk image from folder", and select "read only", 256-bit encryption. Some of the folders worked. However some will just hang for hours on "Creating Image, copying...". I can see at the destination the dmg file has stopped incrementing larger. It has reached the full size of the folder approximately. Does apple fail at some file types? I already ran disk repair several times to no avail. I don't know what else to try, it just doesn't want to work. All I want is an encrypted backup, that any OSX install can retrieve without any special software involved. Sometimes I'll get a very unhelpful error message "Operation not supported". Whatever that is supposed to mean. Google was no help so hoping for some insights here.

Create an encrypted sparse disk image instead of from folder, mount it, and then drag & drop your files into ii.

Disk Utility: Creating a new blank image receiving "file too large" error.

Hello All!
I'm trying to create a 10GB non-encrypted, non-compressed RW blank image via the disk utility. The DU runs for a few minutes then barfs out "file too large" error. I have over 30GB free on my HDD. I tried with a smaller size of 6GB to no avail. Also tried unsuccessfully to create from a file (about 4 GB). My ultimate goal is to create a case-insensitive image to run an extremely important program needed for high priority work productivity (i.e. WoW). Thanks in advance for any advice! You will be my new best friend if you help me resolve this. =D
Hollie
"There are only 10 types of people in this world: Those who understand binary, and those who don't."

Hi Hollie, and welcome to the forums!
Have you created images before successfully?
Is this to/on your boot drive, or an external drive?
Have you done any Disk/OS maintenance lately?
We might see if there are some big temp files left or such...
How much free space is on the HD, where has all the space gone?
OmniDiskSweeper is now free, and likely the best/easiest...
http://www.omnigroup.com/applications/omnidisksweeper/
WhatSize...
http://www.macupdate.com/info.php/id/13006/
Disk Inventory X...
http://www.derlien.com/
GrandPerspective...
http://grandperspectiv.sourceforge.net/

Disk Utility create new image question

In the side bar of Disk Utility, it lists the devices and then, indented, the names of the disks. If I want to create an image of an existing DVD, does it matter whether I choose "Upper Superdrive" or the disk title?

Also, can someone explain the difference bewteen a read-only image and a master image?

Disk Utility: Create image fails with input/output error

Starting to create an image and saving it into an external hard drive (MacOS extended Journaled).
It starts after less than 60 secs it comes out with an error : Failed to create the image (input/output error)

If you don't mind I'd like to discourage you from backing up a drive onto a disc image file no matter where you plan to save it. Disc image files can be very problematical when it comes to trying to restore the backup. Furthermore, you cannot boot from a disc image. If the disc image file becomes corrupted then you have no backup.
I would like to propose that you think about a better way to backup your drive. You can clone the drive to your backup drive. It's easy to do using Disk Utility's Restore feature. A clone backup is not only bootable but you have direct access to all the files on the backup.
In order to make a bootable clone open Disk Utility. Select Disk Utility Help from the Help menu. Search for +duplicating a disk+. Click on "Duplicating a disk" at the top of the list of articles. Follow the directions.

Disk Utility - Create Image Fails

Hello all -
I'm trying to make an image of one of my hard drives as a back up. I've followed the instructions in Disk Utility help, but when I click "Save" to try to create the image I get a failure message "Unable to create <Disk Name>. (Resource Busy)".
I've tried saving to the destination with a new folder, that did not solve the problem. No other applications are running and both the source and destination disks are mounted and appearing on my desktop. The source is a USB connected drive, destination is a firewire drive, and I can read and write to both the source and destination disks.
Anyone have any idea what this failure message means and how to correct the problem? Thanks - Randy

If you don't mind I'd like to discourage you from backing up a drive onto a disc image file no matter where you plan to save it. Disc image files can be very problematical when it comes to trying to restore the backup. Furthermore, you cannot boot from a disc image. If the disc image file becomes corrupted then you have no backup.
I would like to propose that you think about a better way to backup your drive. You can clone the drive to your backup drive. It's easy to do using Disk Utility's Restore feature. A clone backup is not only bootable but you have direct access to all the files on the backup.
In order to make a bootable clone open Disk Utility. Select Disk Utility Help from the Help menu. Search for +duplicating a disk+. Click on "Duplicating a disk" at the top of the list of articles. Follow the directions.

Disk Utility - Create encrypted disk images super sloooow

Trying to create encrypted disk images via Disk Utility on my iMac (i7 8GB) is super-slow in 10.8. It worked quite fast in 10.7, but now it's super-slow and doesn't even seem to ever finish.
I've tried re-installing 10.8 with no difference.
Anyone else having trouble with this? Even a small dmg (~200MB) doesn't seem to work.
Unencrypted images seem to work OK (if not a little slow).
I realize that the encryption process will be slower but something is definately wrong with 10.8 disk utility in this regard. I have 1TB+ free space. I have tried with another user account as well.
My task was: (new disk image, read-write, 128bit encryption)
2012-09-03 08:59:59 -0400: Initializing…
2012-09-03 09:00:00 -0400: Creating…
2012-09-03 09:03:28 -0400: Copying… <<< seems to be stuck here...

Good morning,
Have you tried using Disk Utility from within the recovery mode? (Hold down CMD and R when booting)
I used to have this problem but creating them this way really improved the time.
Give it a go...
Rob

Disk Utility: Create Image from Volume Without Unused Space

I'm trying to create a disk image from a mounted volume (flash memory in a video camera) but I don't want to write to it later, it's just for archiving. The problem is that the size of the original volume is 16 GB, so every image I create is huge, even if there is less than a 1 GB used.
For example, I only have two short clips on there, about 1.1 GB used. When I create a new .dmg from the volume, the file is 5.28 GB and when I mount it it tells me the size of the volume is 15.3 GB. Clearly I understand why this is happening, it's creating a bit for bit copy of the original volume, but I don't need all that space since I'm never going to write to it.
In disk utility it won't let me resize the image (it's grayed out). What do I do?

I actually don't understand why this is happening (when I do this the created disk image only uses the space it needs) but you can get around it as follows. First create a blank read/write disk image to the size you want and then restore the memory card to that image.

Anyone know Disk Utility, Ignore Ownership, and disk image DL DVD issues?

I am currently having issues with backup DVD's I burned using Disk Utility. I can put the dual layer DVD's in and the system reads them. When I try to pull a file off the Dual Layer DVD a circle with an X appears notifying me that I cannot copy the files to my desk top.
When I check the DVD's permissions it reads Admin (me) read and write with the ignore ownership checkbox checked...which means I should be able to pull files off the DVD. The only way I can currently get information off the DVD is to duplicate the entire disk to a new folder by selecting the DVD while holding down the Cntrl key and selecting duplicate. I have had other issues with DVD's and disk images in Leopard....including having to eject either through disk utility or by selecting the image with the Cntrl key held down. Finder eject, keyboard eject, and the menu eject selections suddenly report that the disk is in use.
The DVD's were burned by creating a dual layer dvd image through disk utility with the read/write option checked.
After duplicating 2-3 disks, the system itself is unable to mount any more disks from the series of backups. When I look at disk utility it reads that the disk is not mountable. I have to restart my computer so the system can continue to read the backups.
My Itunes disk backups are marked the same way (ignore ownership) with admin read/write privlages....I have no problem pulling files off these disks.
I have tried both logging in as root and booting from an external drive...same problem. Is this some nasty Disk Utility bug? Is anyone else having bizarre permission related issues with Disk Utility and Disk Images.

When you create the image in Disk Utility, did you
change the 'Partitions' setting?
If you leave it to read 'CD/DVD', it will create a ISO9660/UDF image.
To be able to maintain permission and extended file attributes, you
need to select 'GUID Partition Map'.
I assume you used iTunes to create your music backup?
It seems it creates the correct image type for you.
Before sending this message, I actually created a single layer image,
copied some files to it and gave additional permissions to other users on my system.
Afterwards I copied the files to my Desktop, verifying that the attributes are still intact.
Best regards
(It took quite a while to burn this 4x DVD-RW Anyways, I hope I could help)

Disk utility creating .cdr and .iso

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