It looks like I'm not the only one having a problem with 3.8 on the iPod video.
My problem not quite the same as others posted: my 80gig, 5.5 iPod sits indefinitely on "Scanning database" when 3.8 boots.
Tried removing the database files, turning off load database to RAM, and finally putting a database ignore file in all but one folder (with only five mp3's in that folder) - no joy, same problem.
So I rolled back to 3.7.1, everything's copacetic....
NS