I have a yamaha 6416 internal cd-rw. yesterday i was burning a cd and about 2 minutes into it i got a buffer underrun error. well i thought this was odd because this was the first time this has happened to me, so i restarted my computer. When it rebooted i put a blank cd in there and it would not read it. then i put a real disc in there and it still wont read. my system detects both and says theres nothing wrong with them. Is it my CD-RW or my scsi card? what can i do? Any help would be appreciated.