MOTUNATION (formerly UnicorNation) is an independent community for discussing Digital Performer and other MOTU audio software and hardware. It is not affiliated with MOTU.
Well, there are claims that slow burns are less prone to write-errors. I believe most dupe houses slow burn CDs. Might be best to err on this loose info.
i work for a cd duplication house and we never go higher than 8x, but tend to stick with 4x unless we are in a bind. i've had customers bring us masters that were burned at higher speeds and have skips and pops all over them.