Error message when verifying disc

Toast has stopped burning properly so I tried repairing the disc permissions (which went fine) but then, when I tried to verify the disc I got the message, "Error: The underlying task reported failure on exit".
I've tried restarting from the Install disc and running the Apple Hardware Test, but that found nothing.
When I run the verification, it finds minor repair needed to the volume bitmap, and then it states, "Invalid volume free block count".
This is what it reads:
Invalid volume free block count
Invalid volume free block count
uld be %@ instead of %@)",2)
3915574
3915573
The volume Macintosh HD needs to be repaired.
Error: The underlying task reported failure on exit

1. Your hard drive is dying.
2. Backup everything.
3. Visit repair shop.

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I got this error message when verifying the disk

The electricity in my apartment was abruptly shut down while I was using my imac. After I'd got all the electricity back on, I turn on my mac and found that when I verified the disk in disk utility I got this error message.
Verifying volume “Macintosh HD”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Illegal name
Illegal name
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
Volume Header needs minor repair
The volume Macintosh HD needs to be repaired.
Error: The underlying task reported failure on exit
1 HFS volume checked
Volume needs repair
The repair button is in grey so I couldn't do anything. So far, the computer seemed to work fine, but what is the necessary thing to do in this situation??
Can anyone help?? please.
Navin

I'd stay away from disk warrior etc. Try disk utility.
DiskWarrior is not a disk repair program in the conventional sense. Instead of patching the original directory, it uses a patent-pending technology to quickly build a new replacement directory using data recovered from the original directory, thereby recovering files and folders that you thought were lost and that no other program could recover.
I've never had trouble with Journaled HFS+ volumes but if I did I try disk utility to repair. Then run fsck from single-user-mode. Then, if that failed I'd pull my data off and erase.
I've never had any persistent luck with norton type utilities, the problems always come back until I erase.

Error message when burning discs on a MacBook and MacPro Desktop

I have encountered a problem burning a CD-R with the MacBook. I created 12 image files (JPEG) totaling 48 MB. I placed them in a Burn Folder and tried to burn them to a CD-R. I recevied the following error message "Burning the disc failed because an unexpected error occurred (error Code 0x80020000). The same problem occurred on my MacPro desktop. I spoke with an Apple technician. She had me reset the hardware on my desktop. When that did not work she told me the disk was bad. I tried a different brand of CD-R and a DVD disk with the same results. She suggested that I reinstall the operating system. Since it happened on both of my Apple computers it seems to me that the problem is related to a software bug, since it is unlikely that both machines went bad at the same time. The MacBook is only 3 months old and the MacPro desktop a little over a year old. Today I discovered that the desktop would burn a CD-R if I had only one image file in the Burn folder. Has anyone run into this problem? Does anyone have a solution?

Thank you for your reply. I have some additional information that may help you. I initially found that if I tried to burn 12 JPEG image files to a CD-R I received the error message I reported in my first post. If, however, I only tried to burn 3 files to the CD-R, they were burned onto the CD and I was able to retrieve them. If I tried to burn more than 3 files it did not work.
I took my MacBook to the Apple store Genius counter yesterday to get some help and was able to exactly reproduce the errors. The Apple techs suggested replacing the CD/DVD drive. I am waiting for the new drive to arrive. In the mean time, I discovered that if I included any number of files and sub-folders in a single main folder, and then tried to burn that main folder it worked. I was subsequently able to successfully burn a single folder containing 300MB of files and sub-folders. This seems to me to be a bug in the Mac OS, especially since it happened in exactly the same way on 2 different late model Macs. Hope this helps. Let me know if you can reproduce my experience or have any additiona information.

Error message when burning discs

I can't burn a disc from my playlists. I have the newest version of iTunes but I do not have the burn icon at the top of the page. The only way I can initialize a burn is to right-click the playlist and select "burn playlist to disc". The burn begins properly but somewhere before it is finished it cancels itself and gives me the following message : Unable to burn disc. An unknown error occurred (4251). Any suggestions?

I HAD THE SAME PROBLEM, I GOT THE ERROR 4251, WHAT ID DID WAS TO SELECT A SLOWER BURNING SPEED, I SELECTED 4X, AND IT WORKED FINE, THE CD'S I AM USING ARE MEMEOREX CD-RW 12X, TRY IT AND LET ME KNOW IF IT WORKS.

I just bought 2 ipod touches for my kids and I cant register either and I get an error message when verifying their e-mail for facetime can anyone help

I need help I cant register my sons ipods or get facetime to confirm e-mail I could use some help pleas

Try here:
iOS: Troubleshooting FaceTime
What error are you receivng?

IMessage returns error message when verifying - says it's already in use but can't use it...

It verified another Apple ID I use for iTunes and an AOL address (but not sure they're working).
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That usually means it's associated with another ID or used somewhere else.
The following article(s) may help you.
Look up your old and forgotten Apple ID

Error message when installing iTunes on my PC: This installation package could not be opened. Verify that the package exists and that you can access it, or contact the application vendor to verify that this is a valid Windows installer package

Error message when trying to install iTunes on my Pc:
Using Windows 7, had to replace hard drive. HELP!!
This installation package could not be
opened. Verify that the package exists
and that you can access it, or contact
the application vendor to verify that
this is a valid Windows installer package

Hello JAH1961,
I recommend following the steps in the article below when getting an error message trying to install iTunes:
Trouble installing iTunes or QuickTime for Windows
http://support.apple.com/kb/HT1926
Thank you for using Apple Support Communities.
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Sheila M.

Safari keeps dropping down this error message when ever i try to log on to any website safai can't verify the identity of the website ( e.g.. any address ) and the drop down has three choices to click on or else you can't go foward., they are check certif

Safari keeps dropping down this error message when ever i try to log on to any website safai can't verify the identity of the website ( e.g.. any address ) and the drop down has three choices to click on or else you can't go foward., they are check certificate ______ cancel ______ continue.... This thing is so annoying when trying to go somewhere i just want the error message to go away.

In your Keychain under 'login' delete the VeriSign certificates and then quit and restart all browsers/itunes/app store.
http://apple.stackexchange.com/questions/180570/invalid-certificate-after-securi ty-update-2015-004-in-mavericks

I receive the following error message when trying to install QuickTime for Windows "Error writing to file C:/Program Files/QuickTime/QTSystems/QuickTimeCheck.ocx. Verify that you have access to that directory."

I recieve the following error message when trying to install Quicktime for Windows "Error writing to file C:/Program Files/QuickTime/QTSystems/QuickTimeCheck.ocx. Verify that you have access to that directory." I just trying to get the latest version of iTunes. Thanks

"Error writing to file C:/Program Files/QuickTime/QTSystems/QuickTimeCheck.ocx. Verify that you have access to that directory."
That one's consistent with disk/file damage. The first thing I'd try with that is running a disk check (chkdsk) over your C drive.
XP instructions in the following document: How to perform disk error checking in Windows XP
Select both Automatically fix file system errors and Scan for and attempt recovery of bad sectors, or use chkdsk /r (depending on which way you decide to go about doing this). You'll almost certainly have to schedule the chkdsk to run on startup. The scan should take quite a while ... if it quits after a few minutes or seconds, something's interfering with the scan.
Does the chkdsk find/repair any damage? If so, can you get an install to go through properly afterwards?

How do I deal with this error message when burning DVD's: The disc can't be burned, because the device failed to calibrate the laser power level for this media.

I am getting this error message when trying to burn a DVD: The disc can’t be burned, because the device failed to calibrate the laser power level for this media. iMac, Mac OS X 10.6.8 Memorex DVD-R 12x Any ideas?

First, try a different batch of recordable DVDs. If you still have problems, you may want to make an appointment at the genius bar and have it checked. The drive may be failing.

Error message when trying to use Toshiba Disc Creator

I recently updated Vista to Service Pack 2 from SP1 and now I'm getting an error message when I try to use Toshiba Disc Creator 2.0.1.3. "Unexpected error occurred. Error Code 32007C-26-00000001" It worked perfectly before.
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Have you tried to roll back OS to earlier time and check functionality again, just to be sure it has something to do with SP2 installation?
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Error Message when trying to burn a disc

Lately, when I try to burn a disc off of an Itunes playlist, I keep getting an error message, and the disc ejects and doesnt burn.

Hi sheryl525,
Welcome to the Support Communities!
The article below may be able to help you with this issue.
Click on the link to see more details and screenshots.
Apple Computers: Troubleshooting the slot-loading SuperDrive
http://support.apple.com/kb/HT2801#
Cheers,
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I get this error message when I try to back up my laptop: Time machine could not complete the backup. The backup disc image "/Volumes/Data/Lou Ann Buesing's Mac Book Pro. sparse bundle is already in use. Anyone know how to fix it?

I get this error message when I try to back up my laptop:
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Reboot the TC.. Sometimes you need to reboot the whole network.
This is what comes of Lion and then made worse in Mountain Lion of Apple not spending enough time to fix the bugs.
Read C12 in pondini.
http://pondini.org/TM/Troubleshooting.html
C17 can be related I think.

I updated my itunes this morning, and now I keep getting an error message when trying to burn a disc. Any ideas how to resolve this?

I updated my itunes this morning, and now I keep getting an error message when trying to burn a disc. Any ideas how to resolve this?

Go to Control Panel > Add or Remove Programs (Win XP) or Programs and Features (later)
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iTunes
Apple Software Update
Apple Mobile Device Support (if this won't uninstall move on to the next item)
Bonjour
Apple Application Support
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The uninstall and reinstall process will preserve your iTunes library and settings, but ideally you would back up the library and your other important personal documents and data on a regular basis. See this user tip for a suggested technique.
Please note:
Some users may need to follow all the steps in whichever of the following support documents applies to their system. These include some additional manual file and folder deletions not mentioned above.
HT1925: Removing and Reinstalling iTunes for Windows XP
HT1923: Removing and reinstalling iTunes for Windows Vista, Windows 7, or Windows 8
tt2

I keep getting this error message when I (right-click) on a photo file on my desktop to burn to a CD. I don't understand this code...does anyone? Thanks Ariel**:The disc can't be burned because an unexpected error occurred (error code 0x80020000).

I keep getting this error message when I (right-click) on a photo file on my desktop to burn to a CD. I don't understand this code...does anyone? Thanks Ariel**: The disc can’t be burned because an unexpected error occurred (error code 0x80020000).

I tried every obvious solution to this problem with different types of disc (-R; +R; -RW and +RW) and the problem persisted. Then I read about removing a hyphen in picture filenames. I renamed all the images and bingo there were no further problems. Apple should have solved this by now. This error code has been reported for several years and my MacBook Pro is quite new. Anyway, I hope this helps. It does work.
Piggywiggle

Error message when verifying disc

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