zz, re dv via 5005 firewire...this is what I have experienced:
during recording if monitoring, the audio stutters, breaks up. This is NOT from the DV source (Sony also). However after recording, playback of dvd audio is fine on Liteon or another player!
On playback, the picture occasionally "freezes", then continues. But guess what, ONLY on the Liteon. If played back on my Panasonic, is fine, no freeze!
This is with finalizing dvd's, HQ recording quality, and latest 0098 firmware update, name brand DVD blanks (HP, Philips, ect.).
To me pretty wierd better playback on another player, as opposed to recorder\player that made the recording!! However I generally don't use the Liteon for playback, and for sure can't with the DV recording apparently.