I was using DVD Studio Pro (FCP Stdio 2) to burn a copies of a video I made on FCP on tues. I tried to burn another copy yesterday and everytime I tried to burn the program would "quit unexpectedly". Tried many things, so then I went into Toast 8 and tried and saw there was "no recorder found". Under the Apple>About this Mac>more info>Disc burning...I got "no burning device was found".
It was there one day and now doesn't seem to think it ever existed. Is there anything that can be done short of sending it in?
Thank you.

OS X 10.4.11
2.33Ghz Intel Core 2 Duo
2 GB 667 Mhz DDR2 SDRAM