iMac8,1 not reading CDs with Matshita DVD-R UJ-875

I am having the same problem, with iMac 24" please i pleed to you peopole can enibodey help me!!!

Same here! Since about three weeks doesn't mount AudioCD's and Software CD's. DVD's (Video & Software) are fine. Is it a 10.6.4 Security Update?

Message was edited by: BeneMac

i am having the same issue but with all types of media and it's intermittent. If I turn the computer off, push the power button for 15 seconds and then turn it back on it starts working again for a couple of days. This issue just started about 2 weeks ago. Any suggestions?

Thanks to a very helpful Apple Genius Bar expert, I have just saved over £100. After reading this forum I tried everything suggested to get my superdrive to accept my DVDs and to get my iDVD to produce a slideshow. After two weeks of frustration I took the whole iMac to the shopping mall. The genius reached into the counter draw and held a can of compressed air.After a minute of squirting the air into the dvd slot all my prayers had been answered. He told me that cleaning the drive like this work on about a third of all his clients. I have now bought a can of compressed air from Amazon for £4 and have it ready for the next problem the arises. (I have tried the same technique on the unruly kids, but it does not seem to work on them!)

On my 24" iMac 6.1 running 10.6.4 with a MATSHITA DVD-R UJ-85J optical iTunes stopped recognizing Sony CD-R Supremas. Any pre-recorder standard CD appears, but not blank disks or recorded Sonys.

The Sony's also do not appear on the desktop. HOWEVER, they do appear in Disk Utility. And if you double-click on them in Disk Utility, a finder window with the burnable CD appears (but still no desktop icon). You can then drag music from iTunes into this window and successfully burn the CD. But iTunes will not recognize it after it's ejected and reinserted.

As a further test, I inserted in my MacBook Pro also running 10.6.4 and the Sony Disk appears on the desktop, but not in iTunes. Clicking on a selection brings up itunes and copies the selection to itunes and plays it. But still no disk image.

I have fixed permissions, zapped P Ram, tossed various preferences, used compressed air in the drive, sacrificed a chicken, and still no luck.

I suspect, OS! Any input / solutions and you can come over for chicken.