If you've got an SB Live! and daughter board, you should have no problems recording perfectly synced CD's. Any analouge output, including the one on the AN1, will give you track seperation problems - the AN1 just tries to get around this by having the software pause the cd between tracks, meaning that more often than not you end up with extra 2 second blank tracks between songs.
Seriously though, you'd be better off with an optical-out CD player.