Burn disc verifying vs. verify disk with disk utility?

is there a difference from *verify disk* in disk utility and the verifying process after burn disc?

eirifying a hard drive just looks through the directory for any errors or inconsistencies. Verifying a burned disc reads all the files and compares them with the original data on the hard drive.

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How do I do this: "This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk?"

"This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk."

Stick the disk in, reboot holding c.
Disk Utility is a menu option about the 2 or 3rd screen in the installer. (don't install OS X!)
Because your booted form the installer disk, you can repair the disk.
Quit and exit the installer and reboot.
If your drive is not repaired, make a note of all what it says, for Apple to use.
Reboot and get your files off to a external drive,
Take the note and your comptuer to Apple for a warranty/Apple care call, they will replace the drive.

I burned an exercise DVD using disk utility and when I played it in my DVD player it was choppy and skipped. Any suggestions are greatly appreciated.

I burned an exercise DVD using disk utility and when I played it in my DVD player it was choppy and skipped. Any suggestions are greatly appreciated.

Commercial
Roxio Toast
<http://www.roxio.com/enu/products/toast/titanium/>
NTI DragonBurn
<http://www.ntidragonburn.com/en/us/product/dragon_burn.asp?>
Shareware or freeware
DVD Image Utility
<http://geek.thinkunique.org/2007/07/17/dvd-image-utility/>
Disco
<http://discoapp.com/>
no longer supported, but free, simple, and runs well under SL.
LiquidCD
<http://www.maconnect.ch/>
free; iffy support, but, again, simple, and runs well under SL.
Burn
<http://burn-osx.sourceforge.net/Pages/English/home.html>
open source; not clear how active development and support are, but runs well under SL.
Terminal Whiz Kid
mkisofs
<http://cdrecord.berlios.de/private/cdrecord.html>
(part of the cdrtools kit)
Use mkisofs to create the disc image, and burn it with hdiutil or drutil. (Some of the free options mentioned above actually use mkisofs.)

Burn a data cd using disk utility

Ok, all I want to do it burn a data cd using disk utility. Everything I read talks about "disk images" and "ISO's" how do I just pick a file and burn it? When I go into disk utility and click burn all of my files are transparent and I can't select any of them. How do I simply burn files?

Hi,
You shouldn't need to use Disk Utility to burn a plain data CD/DVD.
Have a read of this article on how to do it:
http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh854.html
Hope that helps.

I have tried to repair my disk and this is the message I get: "Start up your computer with another disk (such as your Mac OS X installation disc), and then use disk Utility to repair" How do I correctly perform this action?

I have a boot disk that needs repair and I would like to know the correct way to repair this disk using another install disc. I guess there is an issue with the volume free block count.
Please advise.
Thanks.

Insert/connect that disk if needed, start up with the Option key held down, tab to it, and press Enter. If it's a Mac OS X install DVD, choose Disk Utility from the Utilities menu. If it's a different Mac OS X installation, open the Disk Utility in the /Applications/Utilities/ folder. Repair the drive.
(61964)

"Error: This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk."

I'm running Lion on a 15" 500gb Spring 2011 MBP. Ran Disk Utility and got this message. Since I don't have an install disk for Lion, what do I do? Thanks!
P.S. I searched the database and all questions with this were pre-Lion.

Restart your Mac and press command R.
This brings up the invisible Rescue/Install partition placed on your drive when Lion was installed.
Alternatively, you can hold down the Option Key at Startup and choose "Recovery HD".
In either case, proceed as if you had booted from a DVD, answer only the "What Language" question, but do NOT Install. Wait for the MenuBar to be drawn and choose Disk Utility from the Utilities menu.

Burning info CD's using Disk Utility?

Ok, I've got a combo drive (a few years old, on my iBook G3). I'm trying to burn information CDs using Disk Utility. I've got the dmg in disk utility, I select it and click burn. It then asks what speed I want to burn the disk at etc etc.
So, I select the slowest setting (4x) avaible. After its been burning for about 2 minutes, it said the burn ended because it had no burn underrun protection.
What is wrong?

A little more detail info on burning a CD that is not Copy Protected.....
Copy a CD that is not Copy Protected
http://docs.info.apple.com/article.html?artnum=42724
1. Launch Disk Utility at /Applications/Utilities.
2. Insert CD that is not copy protected.
3. In the upper pane, click on the 1st lower level of the CD path...
4. go to...Image>New... and select "Image from [disk/volume name]
5. In the dialog window that appears..select or type.......
• Name • location (desktop)
• Encryption mode (disregard)
• Image Format.(select DVD/CD master)
6. Click "Save"
Note. depending on your choice of image format...
• Selecting DVD/CD NMaster... .cdr will be created
• Selecting read-only or read/write.... dmg will be created.
7. The image file will appear in the lower Pane.
Note.... To checkout the steps so far....double-clicking on the image file will result in a disk image.(when you double-click on this, the contents will be revealed.
Steps (1-7) creates a image file of the CD.
8. Select the Image file that appears in the lower left Pane.
9. Select Images>Burn or... "Burn" from the Toolbar.
10. The CD drawer will open,remove the CD that you just copyed, insert blank CD and close drawer.
11. Burn options:
• Speed: Select a speed less than Maximum
• Verify Burns: (yes)
• Eject disc.. or .. Mount on desktop
12. Click on "Burn" in lower part of dialog.(Burn will change to Append If the Cd was previously appended)
13. And thats it...you are finished.
george

Matshita UJ-867 (6!) won't burn DVD images outside of Disk Utility

Hi, I have a new MacBook Pro and Apple seems to have upgraded the SuperDrive to a Matshita UJ-867 model. It seems that this is causing some problems with 3rd party software. I am trying to burn a .nrg file so I have to use Toast 8, but it failed with the sense error 0x09 0x04: "HEAD SELECT FAULT". It's pretty much an error that Google doesn't seem to recognize at all, so I thought my drive was just borked, but it seems that Disk Utility can burn a normal ISO file (it obviously doesn't support .nrg) just fine.
I also tried with the open source Burn utility and got the same sense error. I'm guessing/hoping this is a software problem that Apple ought to fix in a SuperDrive update sometime, but I'd like to hear from other people with UJ-867 drives and see if they can burn things in 3rd party apps.

I have new MBP, arrived last week. Came with UJ-875. Using Toast 9.x, I got the same error on the first burn of a dual layer DVD+R DL. The second is burning (verifying, burning done) as I write. I did change the source media though. I'll be trying several other burns to make sure I don't have an issue. This MBP is still under warrantee. One way to get apple to listen is to make them replace faulty hdwr. If I do have an issue, they can replace the drive at their cost, or send me a new laptop. People listen when it costs them money...

Burning Dual Layer DVD in Disk Utility vs. Burn Folder

Using Disk Utility, I created an Image, (File > New Image from Folder), The resulting .dmg file was about 8.3 Gigabytes. Still in Disk Utility, I select the volume (Filename.dmg) and click Burn, insert a dual layer disk and get a "Disk does not have enough free space" message. I create another image of the same folder, but select "Compressed", giving a folder size of about 6.2 Gigabytes. I try to burn this but again get the "not enough free space" message.
Now I try creating a Burn Folder, put the 6.2 gb Filename.dmg in the folder and select Burn, It burns fine.
Why does the Burn Folder method work and not Disk Utility? What am I missing?
I would appreciate any insight.
Geoff

Hi James:
When you try to copy the dual-layer you may encounter problems because the layer-break may not be where you think it should be.
When you try to copy the actual dual Layer DVD, iDVD will inform you that doing so may result in a disc that has playback problems in DVD players. It states that you are better off burning it with iDVD than from a Disk Utility.
3rd party software that will help would be Roxio's Toast 6, 7 or Popcorn.
Sue

I tried to burn windows 7 Iso using disk utility for more than 3 time with the minimum speed, but all the three times I got error saying "disk burn failed unable to verify"?

I have tried with three different blank DVDs but all got the same error message. But after I got the error message when I reinsert the DVD I can see the ISO in the DVD. So I went a head with the installation but the installation stops just after it starts. I have even tried burning the disk at 2X speed.

It sounds like your optical drive may be dirty. The lens probably needs a cleaning. You can go to somewhere like Best Buy and pick up a cleaning kit.

How to burn "1-to-1" in disk utility?

I've been told I need to burn some .iso file into a DVD using this "1-to-1" (or Disk-at-Once) thing but I have no idea what that is or how to do it and I've already searched the forums... and google.
Help.

Hello,
Burning a disk image in OS X is pretty simple. Here's a guide that shows the steps:
http://www.mrbass.org/mac/dvdburn/
If you are using a built-in CD/DVD-Writer drive, then ignore the first part about external drives and Patchburn.
I hope this helps.
Let us know if you have other questions.
P.S., if you'd like, go ahead and click the "Helpful" or "Solved" buttons on any of the posts / replies above if you feel they were helpful or adequately answered your question.

Disk Utility verify of ISO burn fails, but md5 sum matches

Frequently when I burn a large DVD iso to a DVD, via the "Burn" task in OS X Disk Utility, the process results in a failure at the end of the verify process. However, if I check the md5 sum of the DVD against the published md5 sum for the ISO, the checksum matches. From this I assume that the DVD must have written correctly. Why does DiskUtility report that the verify failed?
System: IMac 27-inch, Mid 2011
OS X 10.9.5 (13F34)
Disk Utility: Version 13 (517)
Example: Here's the md5 sum of the downloaded ISO, which matches the published me5 sum for the ISO on the Centos website, and of the written DVD.
     # get md5 of downloaded ISO:
$ md5 CentOS-6.5-x86_64-bin-DVD1.iso
MD5 (CentOS-6.5-x86_64-bin-DVD1.iso) = 83221db52687c7b857e65bfe60787838
     # Centos site reports: 83221db52687c7b857e65bfe60787838 CentOS-6.5-x86_64-bin-DVD1.iso
     # read DVD via dd and pipe to md5 to get md5 sum:
$ dd if=/dev/disk2 | md5
8726528+0 records in
8726528+0 records out
4467982336 bytes transferred in 63.966136 secs (69849183 bytes/sec)
83221db52687c7b857e65bfe60787838
DVD was written via DiskUtility:
     1. File | Open ->select ISO from downloads folder
     2. Select ISO in left panel of Disk Utility
     3. insert blank DVD
     4. click Burn icon (pops up Burn Disc in: SuperDrive. Ready to burn.)
     5. click Burn
Result:
     dialog with "writing track"... "verifying" "Unable to burn "Centos....iso." (Verifying the burned data failed.)

its not your drive the problem its the disk if you use singapore produce disk there is a way to find out what kind of disk is made by you could have a disk of poor quality made by Ricoh, singapore disk dual layer disk of of top quality.
apple needs to update the firmware KA19 to be compatible to the Ricoh disk.

Help after using verify disk with MacBook Pro 2009

Hello, I was running verify disk and got this massage:
This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk.
Verifying volume “Macintosh HD”
Performing live verification.
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Missing thread record (id = 932391)
Missing thread record (id = 1020109)
Missing thread record (id = 2003740)
Missing thread record (id = 2587373)
Incorrect number of thread records
Checking multi-linked files.
Checking catalog hierarchy.
Invalid volume file count
(It should be 806588 instead of 806594)
Checking extended attributes file.
Checking multi-linked directories.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD was found corrupt and needs to be repaired.
Error: This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk.
what dose it mean?
I don´t have my Mac OS X installation disc with me and it is also not possible to buy one here. what can i do?
thank you so much

Boot into single-user mode. After startup is completed you will be in command line mode and should see a prompt with a cursor positioned after it. At the prompt enter the following then press RETURN:
/sbin/fsck -fy
If you receive a message that says "***** FILE SYSTEM WAS MODIFIED *****" then re-run the command until you receive a message that says "** The volume (name_of_volume) appears to be OK." If you re-run the command more than seven times and do not get the OK message, then the drive cannot be repaired this way. If you were successful then enter:
reboot
and press RETURN to restart the computer.
There is no guarantee this will fix the problem. Normally you must boot from another drive in order to repair the startup volume. If you can't use a Snow Leopard DVD then you would need to use some other bootable device like a backup drive or another Mac connected via Firewire - Target Disk Mode.

When I go to disc utility, repair disc is not functioning, neither is the verify disc. There is a statement that says,"start up from the mac OS X intallation disc and then choose utilities Disk utility. However there is no option for that

Verify disc and repair disc are not working. They give me the option to install the "installation disc" click on utilities>Disk utility from there. When I try this, there is no option to do this that I can find. Can anyone help me to do this?

You can't run Repair Disk from the Utilities folder. With 10.4, 10.5 or 10.6 put your install DVD into the optical drive (CD/DVD drive) and reboot. Be sure to either use the disc that came with your Mac, or, if you installed a later Mac OS X version from disc, use the newer disc. As soon as you hear the boot chime, hold down the "c" key on your keyboard (or the Option Key until the Install Disk shows up) until the apple shows up. That will force your MacBook to boot from the install DVD in the optical drive.
Or if you are running 10.7 Lion or 10.8 Mountain Lion, boot from the recovery partition (Command +R on boot) and use Disk Utility to repair your OS 10.7 or 10.8 partition.
When it does start up, you'll see a panel asking you to choose your language. Choose your language and press the Return key on your keyboard once. It will then present you with an Installation window. Completely ignore this window and click on Utilities in the top menu and scroll down to Disk Utility and click it. When it comes up is your Hard Drive in the list on the left?
If it is, then click on the Mac OS partition of your hard drive in the left hand list. Then select the First Aid Tab and run Repair Disk. The Repair Disk button won't be available until you've clicked on the Mac OS partition on your hard drive. If that repairs any problems run it again until the green OK appears and then run Repair Permissions. After repairing use Startup Disk from the same menu to choose your hard drive for restarting from your hard drive.

Verify Disk results, confusing.. Can they be the cause of system lock ups?

I have been experiencing strange freezes on my Mac Pro 2008 system.
My boot disk is a 50% full 128GB SSD from Crucial and is running beautifully fast however for the past couple of weeks my system often freezes for anything from 3 seconds to 30 seconds and then the Finder restarts.
After the Finder restarts everything continues running smoothly. As if nothing ever happend, no error reports, no apps crashed, nothing.
I have verified disk permissions and verified the disk itself in Disk Utility but I am not quite sure what these results mean and if they could be the cause of these random lock ups.
here are the results:
Verify permissions for “Boot Disk”
Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent" has been modified and will not be repaired.
Group differs on "private/etc/hostconfig", should be 0, group is 20.
Permissions verification complete
Verifying volume “Boot Disk”
Performing live verification.
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Missing thread record (id = 5888152)
Incorrect number of thread records
Checking multi-linked files.
Checking catalog hierarchy.
Invalid volume directory count
(It should be 184294 instead of 184295)
Checking extended attributes file.
Checking volume bitmap.
Checking volume information.
The volume Boot Disk was found corrupt and needs to be repaired.
Error: This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk.
I would really appreciate it if someone that knows their way around this stuff could help me troubleshoot this.
As for the problem of the system locking up it does not happen in the same application consistently.
Often it happens in Firefox but it could equally often happen when working in Photoshop, browsing files in the Finder or trying to access the Spotlight search via the keyboard shortcut.
When the system locks up I get the spinning beach ball and I can still move the mouse and click and even still access CMD+TAB app switcher, switch spaces and all those things, just applications become non responsive.
If you need any more details please let me know.
Thanks for reading,
Jannis

These are innocuous errors that you may safely ignore. However the disk error is a problem. Do the following:
Repairing the Hard Drive
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Installer menu (Utilities menu for Tiger and Leopard.) After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors, then quit DU and return to the installer. Now restart normally.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.

Burn disc verifying vs. verify disk with disk utility?

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