Odd Superdrive Issues: Won't Burn Media, Won't Recognize DVDs, Likes Odd CD tracks

My Aluminum Imac (2Ghz 20", running 10.5.5, bought in March) is having issues with its superdrive.

1) Will not burn, recognize, or even admit that I have a blank CD/DVD in drive. I have to reboot the machine & force the disc out (holding down the mouse button)

2) If I insert a DVD, I get a "Disk Insertion" error message, telling me that that type of disc can't be read by the computer. Disc offers me an option to ignore or eject.

3) If I insert a Audio CD, it will mount about 10-20% of the time. When it does, it will start iTunes only sometimes. Not that it matters, because it doesn't appear in iTunes.

4) Tried playing a file on the CD from Quicktime, doesn't work.

5) Only the odd numbered tracks appear in finder! VERY ODD!

6) The drive is listed in System Profiler as:

ATA Bus:

OPUIARC !DWD!RW AD-5731A! ! ! ! ! ! ! !:

Model: OPUIARC !DWD!RW AD-5731A! ! ! ! ! ! ! !
Revision: 1AIM! !
Serial Number: ! ! ! ! ! ! ! ! ! !
Detachable Drive: No
Protocol: ATAPI
Unit Number: 0
Socket Type: Internal
Low Power Polling: No


Any Ideas on what to do?!

I live in a town with an apple store and the computer is still under warranty til March 2009.