I have had nothing but hard crashes trying to use the newest Cineform codec when trying to encode using it with Mac CS5 (PrP / AA / AME). Developer had same experience when we worked over the phone on this issue.FYI.
Tom Daigon
Avid DS / PrP / After Effects Editor
http://www.hdshotsandcuts.com
Mac Pro 3,1
8 core
10.6.8
Nvidia Quadro 4000
24 gigs ram
Maxx Digital / Areca 8tb. raid
Kona 3