1X speed in audition CD burning, so that CD isn't rejected by the plant due to inadequate error correction scheme.

A couple of points: It’s mainly the quality of the media you send that makes most difference - single speed burning can actually make things worse because of increased dye splatter. When I used to do it like this, I always had to send several disks, and let the plant choose. But - the other thing of course is that there’s not a duplicator/replicator out there now that cannot accept a DDP (Disk Description Protocol) master, and submitting one of those removes all errors completely, and is what they prefer. If you don’t want to lash out on Sonoris, then use Reaper. What would make far more sense as far as Audtion is concerned would be for it to have DDP available itself.