Possible to play disk image on Mac ?

Hi there,
I have made disk images from a few DVDs and BR that I got from FCP projects that I want to save.
IS there anyway to check the quality of the disk image file on the Macintosh or do I need to burn DVD/BR again to check ?
Thanks in advance
Ivan

I also was able to make a disk image of a blu ray in disk utitlity using an external blu-ray drive. I however cant seem to burn that image back onto a blank blu ray. Any guidance would be very appreciated.
>I select the dmg. file in disk utitlity… >then his the burn icon…
>it then says “waiting for disc to be inserted…
>I then insert a blank blu ray disk in my blu ray burner >and hit the burn button … >The burn button remains greyed out and the disk ejects itself after about 20 seconds.
I have tried two different media brands
Memorex BD-R 4X 25GB Single Layer
Maxel BD-R 1-4X 25GB Single Layer

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Can anyone help please with my Time Machine, I have been getting the following message The backup disk image "/Volumes/Mac Backup/Stephen Smith's iMac.sparsebundle" is already in use.

Can anyone help please with my Time Machine, I have been getting the following message The backup disk image “/Volumes/Mac Backup/Stephen Smith’s iMac.sparsebundle” is already in use.

See > http://pondini.org/TM/C12.html

Can't play Disk Image in DVD Player

I saved my iDVD project to disk image so I could view the video on my Mac Pro prior to burning the project.
When I double click the saved disk image icon, the archived file that I made earlier populates on the screen instead of the DVD player opening. That's strange?
I see an Audio_TS file, Video_TS file, and a DVD-ROM contents files instead of the DVD player. Why isn't the DVD player playing the disk image that I saved?
I also tried the process in reverse. Trying to open the saved disk image from the DVD Player and the saved disk image is all greyed out not allowing access to view the video.
Thanks in advance for any assistance.
Mac Pro 2.66 GHZ, 1 GB RAM, 250 GB HD Mac OS X (10.4.9) Mac Pro

All I want to do is just play the disk image.
Read through the following for help.
http://docs.info.apple.com/article.html?path=iDVD/6.0/en/18.html
http://www.kenstone.net/fcphomepage/image_to_diskstone.html
Once the disc image is created, double-click the .img and burn the virtual disc that should appear on your desktop, using Toast to burn the DVD. Disk Utility to burn the .img file. Usually, you can select a burning speed in Disk Utility.
There are variations to this process based on which OS X you are using...
Open Disk Utility (in Utilities folder in Applications folder), click on the virtual disc (maybe the .img) in the left-hand window. Click the Burn icon. A new window should drop down and your SuperDrive tray will open after clicking the Burn icon. Insert a recordable DVD. (Verbatim DVD-R preferred by me.) Click the Close button. Wait. Select a burn speed. If you hold your mouse cursor over the pop-up it says: "Select a slower speed to work around burn failures," so select 4x or slower for best results. Then click the Burn button.
-->If the virtual disk selection won't allow you to click the Burn icon, use the .img file instead. This may have changed in 10.3.9 and did change in Tiger.
Also, you can use DVD Player to play the virtual disk to check your iDVD project before burning to DVD. Launch DVD Player. File/Open VIDEO_TS (Open DVD Media... in Player 4.6). Find the VIDEO_TS folder and open that. (The audio folder is for DVD-Audio disks.)
http://docs.info.apple.com/article.html?artnum=93006
G4 DP 1.25 GHz 2GB RAM 4 Internal Drives: 860GB Mac OS X (10.4.9) 2 SuperDrives (SL & DL)

Mounting an Apple disk image (Intel Mac) under other Unixes/Linux

Hello,
I have started my MacBook in HDD Mode and connected it via Firewire-Cable to my "Main-Server" (Slackware Linux 11.0).
From there i created a "Disk-Image" from my MacBooks HDD using "dd"
I can mount the disk image within OS X without any problems, but i can´t mount it on the Linuxbox.
I have used this cmd under Linux : "mount -o loop -t hpfs image.dmg /mnt/tmp" But i am getting an error saying that it doesn´t seem to be a Apple File System Image.
I have made sure that support for Apple FS is "compiled-in" in the Linux-Kernel. If i do a file image.dmg i get this:
x86 boot sector; partition 1: ID=0xee, starthead 254, startsector 1, 117210232 sectors, extended partition table (last)\011
Does anyone know how i can mount this image under Linux?
Thanks,
tyrtux.

I can't offer any solution yet, but here's a bit of information that might prove useful in understanding the problem.
"mount" on Linux mounts file systems, not disk images. A disk image is just that -- a bit-for-bit image of the sectors on what would be a physical disk. A file system is a portion of a disk structured in a specific way -- a section set aside for managing free space, a "root" directory, etc.
A partition is a logical subdivision of a disk. Usually, each file system on a disk completely fills one partition; but partitions may overlap, and one partition may contain any number of file systems.
A disk -- and therefore a disk image -- contains, within its first physical sector, a partition map. The map includes the start sector, size, and type of each partition. The type usually hints at what the file system -- if any -- of the associated partition is.
When you connect a physical drive to a Linux system -- be it IDE, SCSI, USB, or CD-ROM -- Linux scans the partition table. You can then use mount to get access to individual file systems on the device. When you use "mount -o loop", you are asking mount to connect a loopback device to a file that represents not a disk -- but a file system. This is why your attempt is failing; the disk image doesn't look like a file system, it looks like a disk -- it has a partition table of its own.
You might be able to map the file to a drive for VmWare, and access it from the virtual machine. Otherwise, I'd hunt around for software that deals with complete disk images, not just file systems.
Powerbook G4 1GHz Mac OS X (10.3.9)

Only show disk images in Mac OSX

Hello,
im having an issue where clutter seems to end up on the desktop of my computer (such as random documents and audio files), I know that there is a terminal command to completely disable files on the desktop, but is there any way you can chose what you want to appear on the desktop (such as iPods and Disk Images only....)
Thanks in advance.

What apps like to put stuff there?
If you are talking about when you save a file and it defaults there for some stupid reason, change it to the Documents folder. The app should then default to that last used location. If it doesn't, complain to the developer.
If you have apps that are just randomly dropping items on the Desktop, send a nasty gram to the developer.

Disk image invalid at random or unable to mount from Finder

I think I've found a serious problem with 10.4.10 (although it could be an older bug) in verifying and mounting downloaded disk images. In this case the disk images were downloaded from Adobe.
The problem happens at random so I think it is a memory leak bug and possibly caused by disk images that are over 2GB.
For the record, through repeated tests, I've eliminated the network and the source of the downloaded images. I've verified the problem does not occur on an iBook running 10.4.9. The dmg files on both machines are identical both in size and MD5 hash. I've also verified and repaired both the startup disk and permissions.
When mounting the disk image, or verifying the image using Disk Utility the resulting error is either a 'codec overrun' or a 'CRC32 checksum error'. (You might get a similar error if the downloaded file was corrupted enroute.)
Using hdiutil to verify the disk image repeatedly I get the following:
Attempt #1 (OK):
Checksumming Driver Descriptor Map (DDM : 0)...
Driver Descriptor Map (DDM : 0): verified CRC32 $2BEFD39B
Checksumming Apple (Applepartitionmap : 1)...
Apple (Applepartitionmap : 1): verified CRC32 $2A6C5D81
Checksumming disk image (Apple_HFS : 2)...
disk image (Apple_HFS : 2): verified CRC32 $629FA77D
verified CRC32 $EAF93BBF
hdiutil: verify: checksum of "ADBESTPPCS3_WWE.dmg" is VALID
Attempt #2 (OK):
Checksumming Driver Descriptor Map (DDM : 0)...
Driver Descriptor Map (DDM : 0): verified CRC32 $2BEFD39B
Checksumming Apple (Applepartitionmap : 1)...
Apple (Applepartitionmap : 1): verified CRC32 $2A6C5D81
Checksumming disk image (Apple_HFS : 2)...
disk image (Apple_HFS : 2): verified CRC32 $629FA77D
verified CRC32 $EAF93BBF
hdiutil: verify: checksum of "ADBESTPPCS3_WWE.dmg" is VALID
Attempt #2 (Invalid, exits almost immediately after checking HFS partition.)
Checksumming Driver Descriptor Map (DDM : 0)...
Driver Descriptor Map (DDM : 0): verified CRC32 $2BEFD39B
Checksumming Apple (Applepartitionmap : 1)...
Apple (Applepartitionmap : 1): verified CRC32 $2A6C5D81
Checksumming disk image (Apple_HFS : 2)...
disk image (Apple_HFS : 2): checksum failed with error 1000.
calculated CRC32 $1D42E2A6, expected CRC32 $EAF93BBF
hdiutil: verify: checksum of "ADBESTPPCS3_WWE.dmg" is INVALID
hdiutil: verify failed - codec overrun
Attempt #4 (Invalid, but runs through most of the file):
Checksumming Driver Descriptor Map (DDM : 0)...
Driver Descriptor Map (DDM : 0): verified CRC32 $2BEFD39B
Checksumming Apple (Applepartitionmap : 1)...
Apple (Applepartitionmap : 1): verified CRC32 $2A6C5D81
Checksumming disk image (Apple_HFS : 2)...
disk image (Apple_HFS : 2): calculated CRC32 $8C6BE160, expected CRC32 $629FA77D
calculated CRC32 $ABB152E2, expected CRC32 $EAF93BBF
hdiutil: verify: checksum of "ADBESTPPCS3_WWE.dmg" is INVALID
hdiutil: verify failed - invalid checksum
Attempt #5: (OK)
Checksumming Driver Descriptor Map (DDM : 0)...
Driver Descriptor Map (DDM : 0): verified CRC32 $2BEFD39B
Checksumming Apple (Applepartitionmap : 1)...
Apple (Applepartitionmap : 1): verified CRC32 $2A6C5D81
Checksumming disk image (Apple_HFS : 2)...
disk image (Apple_HFS : 2): verified CRC32 $629FA77D
verified CRC32 $EAF93BBF
hdiutil: verify: checksum of "ADBESTPPCS3_WWE.dmg" is VALID
As you can see it's a crap shoot whether or not I can mount this file. The file is valid and mounts repeatedly on the 10.4.9 machine.
In terms of a work around, I can create a DVD of the contents on the working machine and try installing from the DVD. I don't really want to roll back the affected machine to 10.4.9 to test, but this might also be an option to fix the problem.
I checked with Apple Care, but they could not offer anything other than archive and re-install which I don't really feel like doing at the moment.
Note: This may not actually be a problem related to 2GB files. I have a couple of other dmg files around 300MB which randomly pass/fail but maybe a 2GB file starts the problem.
Although hdiutil will occasionally verify the file as valid it seems mounting the image from Finder will always fail. This definitely smells like a memory leak.
Skipping verification and mounting the image won't work as the image will unmount when you read from the disk image at the affected spot.
Macbook White 2GHz Mac OS X (10.4.7)

I can't do anything for your problem, suggest sending a bug report to Apple via its Bug Reporter system. Join the Apple Developer Connection (ADC)—it's free and available for all Mac users. Since you already have an Apple username/ID combo, use that. Once a member, go to Apple BugReporter and file your bug report. You'll get a response and a follow-up number; thus, starting a dialog with engineering.

Creating an Encrypted Disk Image on an External (USB) Drive

I have an external 600 GB drive (2x 300 GB SATA 3.5" disks in a Thecus N2050 RAID0 external enclosure connected to iMac by USB2) onto which I would like to backup a large amount of data (500 GB).
I store this external drive away from my home (in the office) and since I cannot guarantee physically locking away the drive I would like to logically lock the drive by placing all the backup data into an encrypted disk image created on that volume.
I have tried creating an encrypted disk image on my USB volume in Disk Utility (Apple's instructions here) but I experience a number of issues not documented in the Apple article:
1) I am not presented with a drop-down option for the size of the disk image.
2) When I go ahead and try to creat the image I am told that the creation was impossible "file or folder does not exist".
Is it possible to create disk images on USB volumes (I cannot create such a large disk image on my iMac HDD as I do not have sufficient space).
thanks in advance
Raf

I realised that in Disk Utility you must not have any of your mounted drives highlighted in the left hand pane.

Questions related to Disk Images - Image Format Options

Can anyone tell me a more about using Disc Images? I am with a group of new Mac Users and we're focusing on Disc Images at the moment. Want to create a Keynote Presentation for the group when finished.
I have found already a few answers here, if someone could help me on the rest?
In this Thread I focus on the Image Format.
Disc Utility (using OS 10.5.7) offers the following options when creating a Disc Image:
sparse Disk Image
sparse bundle Disk Image
Unanswered Question:
1) What is the difference between sparse Disk Image and sparse bundle Disk Image?
Answered Question (if you have ad-on Informations for the answered Questions feel free to jump in):
Question: What is sparse disk Image for?
Answer: "Choose an image format. You can use "sparse disk image" for a disk image that only uses as much space as it needs, rather than a set amount of space. If you're not sure, use "read/write disk image" choice." (Source: How to create a password-protected (encrypted) disk image in Mac OS X 10.3 or later: http://support.apple.com/kb/HT1578)
Thanks in advance
Rama

Thank you both for your Infos so far. In the meantime I've created some Disk Images. What I noticed is, when I choose a small Image Size like 10 MB, then it changes from "Single Partition Map" to "No Partition Map". When I go bigger to 500 MB it changes to "Hard Disk".
It was already helpful to read the Manual to understand the Single Partition Maps, but what I still don't understand is the difference between using "no partitions map" at all and the other options such as "Hard Disk", "CD/DVD" or "CD/DVD with ISO Data".

Can you get Time Machine to backup to a disk image?

I just bought an OWC external enclosure that holds two SATA drives. I upgraded my internal (main) HD to a 1TB drive, and then put my old internal 500 gig (main) HD and my old internal 500 gig (time machine) HD into the external enclosure.
So I'm good, with an external time machine raid array, that I can take off site.
But, I really wanted to encrypt the data, so as if someone broke into my car and stole my offsite backup, not have my data.
I thought about creating a 1TB (well, 930 gigs) encrypted image in disk utility on the external, mounting it, and choosing that for time machine. When I leave, shutdown would dismount the image, then turn off drive, unplug and leave.
But time machine won't allow me to choose the image.
I read about a terminal hack for backing up to unsupported network volumes....I tired that just for kicks, didn't work.
Is there any way to get time machine to allow me to choose a mounted disk image as my backup volume?
Thanks!

Likewise, I'm interested in the same question, but for a different reason: backing up to a NAS. Since a disk image gives you a nice virtual HFS+ partition, it seems a lot less suicidal than trying to shoehorn a Time Machine backup into whatever the NAS's native filesystem happens to be.
In theory it should be possible, since nested disk images (even mixing sparsebundle and plain old DMG) work just fine normally. And having your data in a nice monolithic DMG file would make it easier to copy and move the TM backups -- not to mention, you cap the max size and do encryption easily, as you described.
But it's almost impossible to find this information on the Web -- Googling for this topic results in a bunch of noise about Time Machine's sparsebundle images. I managed to find one similar thread:
http://forums.macosxhints.com/showthread.php?t=91297
But that thread, like this thread, so far doesn't have any solution.
I'm going to try to copy an existing TM backup to the disk image and see if that works. Will post again later, and hope that someone might have a solution someday.
Incidentally, if all you want is encryption, apparently you can get an encrypted TM backup by manually creating the sparsebundle file and turning on encryption. See the parent thread to this comment:
http://www.macosxhints.com/comment.php?mode=view&cid=98733
Anyway, let's hope someone might have a time-machine-inside-a-disk-image solution someday...

Time Capsule and Time Machine (Sparse Disk Image Bundle)

I just changed the HD that I use to backup TM for Time Capsule. I do not know why it is taking so long (more than 45 min) to calculate size... I took a look at TC and I found "Backups.backupdb" with no item (in TC) and a disk image called "Mac Pro’s Mac Pro.sparsebundle" right beside another dm called Mario.sparsebundle (my MacMini). Did it change from before, it used to be a folder called Backups.backupdb and inside her, folders with your computer's name? Is there something wrong? Should I stop TM?
Mario Lordeiro

You may have successfully increased the sparsebundle's potential capacity while failing to resize the contained partition. That seems to be what happened when I tried this myself. A resized sparsebundle containing the same files would not occupy much more space on disk than it did before.
*Provided you have a backup*, you could try the following:
Remount the image, then run Disk Utility and select the .sparsebundle (non-indented icon) in the left pane. Click on the Partition tab, and then see if you can pull down the lower right corner of the disk image partition to increase its size. If you can, then drag it to the bottom and click Apply.
Again don't try this without a backup. It may not be worth doing in any event - it's easy enough just to make a new, bigger sparsebundle and copy your stuff over.

Is it possible to boot from a shared dvd or disk image remotely

Is it possible to boot from a shared dvd or disk image remotely without using netboot for install or utility?

All Apple Remote Desktop can do is point a system to a startup disk; it has no facility for providing a boot image. So you may want to ask this question in the Mac OS X or Mac OS X Server forums. You'll be more likely to get suggestions there, though other than NetBoot I know of no way to boot a group of computers from a single disk image or DVD.
Regards.

Burned Disk Image Won't Play on DVD Player and Work Around

Hi all,
I was having problem with DVD not being recognized on a regular, stand alone, set top DVD player. The program was created in iDVD6 and saved to disk image. Then I used Disk Utility to burn it and the resulting disc played on Mac but not regular player.
Knowing that the blank media was good from a previous Toast 7 burn, I used Toast 7's Video TS option to burn from the mounted disk image. This disc worked on regular player with one small difference. With multiple videos (in addition to chapter markers) on the DVD, fast forwarding past the end of one video would start the next one with Toast, whereas the disk image (played on the Mac) would return to DVD menu.
I never burned directly from iDVD 6, since the video conversion process took 7 - 11 hours, so I don't know if that would work or not.
I hope this is helpful to some and if anyone decides to buy Toast from Roxio directly, leaving the online cart page open for a minute or two will pop up a 10% off incentive to urge you to check out. That's as of a week or two ago.
Yu

whereas the disk image (played on the Mac) would return to DVD menu.
That has happened to me, but not with the one project I made with iDVD 6.
leaving the online cart page open for a minute or two will pop up a 10% off incentive to urge you to check out.

Subtitles won't play back off disk image or DVD player.

Hello,
I am running into problems seeing the sole subtitle track that I have thru a TV DVD Player or a burned disk image. All is fine in DVD SP's Simulator. So the bottom line is that I am doing something wrong, heh?
My set-up is very straight forward: one main menu page, from which I have a "Subtitle Yes No" set of buttons to respectively enable/disable the subtitle track. The "Yes"/"No" buttons enable/disable the subtitle track by checking/unchecking the "View" box of the Button Inspector as described in the first part of this article: http://www.kenstone.net/fcphomepage/dvd_sp2subtitles.html
Furthermore, other menu pages are accessed, playing back media from a single track with numerous chapters in it, and stories made out of that track. I was hoping I could refrain from needing to duplicate all stories, e.g. One set of stories with the subtitling track enabled, the other set disabled, but it seems like this is the way to go to make it work.
Is there another approach to this? I am rather new to DVD SP and am not familiar with Scripts - would a script help this out?
Thanks in advance for any help you could provide...
Cheers,
Alain
MacBook Pro 2.16GHz Intel Core Duo Mac OS X (10.4.8) 2 GB Memory

OK so I've answered my own question, thought I'd post it here if ever this can help someone else...
Duplicating menus and stories toggling on/off the "View" checkbox of my subtitle stream did not work, which is a good thing in a way because it was an ugly scene to work with.
I guess I was impressed by the "Script" term and refrained from using it, but it turns out to be very easy and simple to use... On my "Subtitle - Yes" button, I targetted a 2-liner script that enables "SPRM 2" (the "Subpicture Stream") with the "On" value of 64 for Stream 1. On my Subtitle - No button, I targetted another 2-liner script that disables "SPRM 2" by assigning it a value of 0.
I find the DVDSP documentation on scripting a little lame though, I guess I would have liked some more examples to help the scripting "science" sink in...
Cheers,
Alain

Disk image plays poorly

The Good News:
I created 39 min video using Final Cut Express 2.
It plays back great in Final Cut Express 2!
I exported a Quick Time Movie and it plays back great in using QT!
I also exported a Quick Time movie-'Self contained' and it too plays back great in QT!
I brought the QT movies into iDVD 6 and it plays back just fine!
I created a disk image from iDVD 6 and the disk image was created without incident.
The Bad News:
When I played the disk image file using DVD Player (to check before burning) a small portion of the video (30 seconds or so) stutters and flutters a bit, pixels changing colors. I tried replacing the clips having this odd behavior in FCE2 with new clips in roughly the same location in the movie--and the same thing happens! 95% of the disk image file plays back fine in DVD player except for this one spot. This trouble spot is in the first 5min or so of the video.
Request for help:
I've learned on this forum to burn a disk image first to identify problems before burning. Well I have problems--now what?
My gear:
Powerbook G4
1.25Gb ram
Lacie 400Gb firewire triple interface external drive
OS 10.3.9
idvd 6
FCE2
Thank you for whatever light you can shed on this for me.
Powerbook G4 12 inch Mac OS X (10.3.9)

This trouble spot is in the first 5min or so of the video.
Suggestion only: Drag and drop the DM to the trash. Empty it. Restart the computer. Verify you have plenty of available HD space and then try again to burn a second DM. If you get the very same results, address the first 5 mins. with alternate content.

Is it possible to share a Mounted Blank Disk Image using WebDav?

I am trying to find a good solution to give individuals the ability to change files in there hosted websites on the Mac Mini Server (10.6.4), but also having a limited folder size. I have seen a few post on using Blank Disk Image as the share folder. I have created the folder and I can see it contents using a WebDav client, but no matter what permissions I put, anytime I try to upload or delete a file from the image I get a 403 error, saying "Forbidden". I can get the WebDav to work on normal shared folders, so I am wondering if it is even possible to share a mounted blank image using WebDav?

It seems if I make an MS-DOS(FAT) image, I can actually make changes to this image file using WebDav, but I cant see how to changer the permissions of the folder. All the methods I have tried do not actually seem to change the file permissions, they default to read and write for everyone.
I am trying to figure out if I am trying to get something to work that is not even possible. I need to be able to limit the size of a folder, share it with specific groups/users in the Open Directory. It also has to be viewable on both Windows and Mac Systems. FTP does not seem to work, since it gives access to the root. I want to be able to have a student/student group post to a wiki, have a website for there project, but they should only have access to this image....
Does anyone know if you can share a mounted image through WebDav, or if there is another way I can setup multiple folders and have websites point to this folder and give only selected users access to the folder for uploading and sharing files?
Any guidance would be greatly appreciated

Possible to play disk image on Mac ?

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