Several year old PowerBook G4 15", 1.5 GHz.

Couple months ago (after a trip to the shop to have a 160GB HDD installed) the SuperDrive began acting up. I am unable to access any disc inserted. No read; no write. BooHoo.

It shows up on the "About this Mac" dropdown, but otherwise doesn't work.

Model: MATSHITADVD-R UJ-825
Revision: DAM5
Serial Number:
Detachable Drive: No
Protocol: ATAPI
Unit Number: 0
Socket Type: Internal
Low Power Polling: Yes
Power Off: No

Any suggestions?

Also, if it comes down to me replacing the drive, is there a PRAM battery inside somewhere that should also be replaced?

Thanks in advance.
Cap'n Steve