I have Yamaha 8424 SCSI writer. When I use the cdrecord I can successfully write CD's at 8x speed,
but when I use the cdrdao the writing sometimes (actually quite often) fails. I think it fails if
I do something (esp. browsing the Web using Mozilla) during the recording process.
It seems to me as the cdrecord more agressively locks the resources (esp. memory/cpu) so
other applications couldn't steal it during the writing process. But it may be something different,
I don't know. When I use 4x speed to record CD's the failure never happens.