While the SOS forum is a great resource for most sound recording questions, I suspect that
drive offsets are so specialised that few people around here even know about them - let
alone actually worry about them.
If I was worried about this, I would simply
set the drive offset to 0, extract a known CD as a reference, and then see how far off the
audio was from the expected position. I could then set the offset accordingly. I guess I
have the luxury of owning a drive with a known offset in order to create the reference
though.
Normally you only need to worry about drive offsets if you are
extracting a CD where the mastering engineer has really pushed the start markers right up
to the start of each track. Most mastering engineers actually allow a gap of 5-10 CD
frames between the start marker and the start of audio specifically to allow for players
that don't position themselves accurately. So these offsets are pretty much irrelevant
with most CD's.
James.
--------------------
JRP Music - Audio Mastering and Restoration.
http://www.jrpmusic.net