the disk you inserted was not readable By this computer (Error)

Is this happening when you are ready to burn a file or folder and the superdrive instructs you to insert a blank CD, OR when you simply insert a blank CD for no particular reason?

In System Preferences/CDs & DVDs, what preferences have you set?

HI and Welcome to Apple Discussions...

Try repairing disk permissions. Launch Disk Utility. Select MacintoshHD in the panel on the left, select the FirstAid tab. Click: Repair Disk Permissions. When it's finished from the Menu Bar, Quit Disk Utility.

Restart your Mac and try a blank disk.








Carolyn 🙂

I started having this exact problem today and I am happy to say that Carolyn's helpful advice fixed the problem. That is, a "Repair Permissions" (which found a bunch of problems and fixed them) and a Reboot did the trick and I am back to burning CD-Rs again.

Thanks 🙂

Glad it helped Colin...




Carolyn 🙂

Had same issue and only repairing permissions didn't solve for me, but there are *3 solutions I found that DO work*.

My permission errors - permissions differ on ./Applications/iTunes.app/contents... etc, should be -rw-rw-r--, they are -rwxrwxr-x

If you are using *iTunes or have upgraded your iTunes to 8.2 recently there is a known burn issue with this update!* I called Apple Care and we found 3 work arounds til there is a fix released.

Check your permissions and repair them and then use any of the solutions below.

Solutions 1,2 are recommended by Apple Care. I used solutions 1,3.
Option 3 is a pain and takes A LOT of time and HD space if you have tons of music, podcasts, audiobooks, etc, loaded into your iTunes.

_*3 possible solutions:*_

1. Use the Finder window already built in the mac (to burn onto blank cds -
Open Finder Window, go to File in the Menu Bar at top of computer, create a new Burn Folder, drag items to the folder and click on the burn icon inside the folder, insert blank disk when asked, add name, select burn speed, burn the cd.

2. Use the app Burn 2.3U -
Found at Apple.com in download section works like a Finder Window and converts audo files to MP3 automatically. (You can set up iTunes to do this as well)

3. Install an older version of iTunes 8.0.2 (couldn't find 8.1 thru 8.1.051) -
I found 8.0.2 at Apple.com, this process is complicated and I can post the instructions, but you will need lots of HD space or external HD to do this because you'll want to back up your music library, otherwise stick with option 1 or 2 til a fix is released by Apple.

I ruined 8 blank cd's that actually burned but then got the error message "the disk you inserted was not readable by this computer (Error)" at end of burn cycle and some early ejections. I had no problems before the iTunes update in the past 5 days. Still can't read/play the 8 disks but the problem went away!

I had burned 20 cds no problem last week with same media disks that were producing errors after doing the iTunes update, now after chosing to downgrade my iTunes I'm back to burning with no issues!

8.2 has 2 versions 32bit or 64bit, one of them may be PC/Windows version only but not sure which one I upgraded to or if that's even a factor with the permission errors I had.

Best wishes

first time posting so not sure this ended up in correct area...

I had same issue except only repairing the permissions didn't solve anything for me. *_If you recently upgraded your iTunes to 8.2_* check your permissions for errors, fix the errors, then restart computer and if that doesn't fix it, then try one of the 3 solutions below as there is a *known burn issue with the recent 8.2 update!*

My permission errors - permissions differ on ./Applications/iTunes.app/contents... etc, should be -rw-rw-r--, they are -rwxrwxr-x

I called Apple Care and we figured out 3 work arounds til a fix is released.

Solutions 1,2 are recommended by Apple Care. I used solutions 1 (easy) and then 3 (complicated).
Option 3 is a pain and takes A LOT of time and HD space or external HD if you have tons of music, podcasts, audiobooks, etc, loaded into your iTunes.

_*3 possible solutions:*_

1. Use the Finder window already built in the mac (to burn onto blank cds) -
Open Finder Window, go to File in the Menu Bar at top of computer, create a new Burn Folder, drag items to the folder and click on the burn icon inside the folder, insert blank disk when asked, add name, select burn speed, burn the cd.

2. Use the app Burn 2.3U -
Found at Apple.com in download section works like a Finder Window and converts audo files to MP3 automatically. (You can set up iTunes to do this as well)

3. Install an older version of iTunes 8.0.2 (couldn't find 8.1 thru 8.1.051) -
I found 8.0.2 at Apple.com, this process is complicated and you will need lots of HD space or external HD to do this because you'll want to back up your music library and you will need to delete version 8.2 BEFORE trying to install an older version. Otherwise stick with option 1 or 2 til a fix is released by Apple.

I ruined 8 blank cd's that actually burned but then I got the error message "the disk you inserted was not readable by this computer (Error)" at end of burn cycle and sometimes early disk ejections. _*I had no problems before the iTunes update in the past 5 days.*_ Still can't read/play the 8 disks but the problem went away!

I had burned 20 cds no problem last week with same media disks that were producing errors after doing the iTunes update, now after chosing to downgrade my iTunes I'm back to burning with no issues!

8.2 has 2 versions 32bit or 64bit, one of them may be PC/Windows version only but not sure which one I upgraded to or if that's even a factor with the permission errors I had.

Best wishes

I'm getting the same error message, but from a different cause. Recently my MATSHITA DVD-R UJ-875 died and was replaced at an Apple Store. The drive seems to work fine. However, every time I boot up, I get the error message, even though there's no disk in the drive. Any thoughts?