[selowitch]

I'm trying to insert these DVD+RWs from Sony into my iMac (20" Late 2006), and after spinning them a few times, the optical drive spits 'em back out. According to Mactracker.app, the specs for this iMac state "Slot-loading SuperDrive w/ 2.4x Dual Layer burn (DVD+R DL/DVD±RW/CD-RW" -- so what am I missing?

[imitchellg5]

Repair disk permissions via Disk Utility.

[selowitch]

Originally Posted by imitchellg5 

Repair disk permissions via Disk Utility.

Well, I did the equivalent by going to the Terminal and entering:[codex]sudo diskutil repairPermissions /[/codex]and that worked! The question is ... why would repairing permissions on my internal hard drive affect whether or not a DVD+RW is recognized? Is it because some driver for the optical drive has the wrong permissions and so doesn't function correctly?

[imitchellg5]

Great! I think your idea is probably correct. For some reason it just thinks that it can't burn to that DVD.