iTunes doesn't mount audio CDs. Help?
So, I have the latest version of Leopard (10.5.8) and the latest version of iTunes (10.5) on my MacBookPro. When I insert any audio CD into my drive, it makes a few whirring and clicking noises for about 30-45 seconds, then spits the CD back out. I have tried with 5 different CDs - they're not scratched or damaged, and are commerically purchased CDs. They don't show up on the desktop, in Finder, and certainly not in iTunes.
Things I've Already Tried:
• fiddling with iTunes preferences (disabling CD track names from Internet)
• fiddling with System Preferences (CD & DVDs - told it to "ignore")
• basic reset/reset in Safe Mode
• downgraded to iTunes 9.2.1
• performed a clean install of iTunes 10.5
• reset system permissions with OnyX
• cleared caches (also with OnyX)
• reset PRAM as a desperate last effort
All DVD's work fine and iTunes otherwise runs smoothly. Does anyone have any other ideas/workaround/help? Thank you so much in advance.
MacBook Pro, Mac OS X (10.5.8)