Happy to report a slightly better encoding time. A 90 min B&W movie with 3 motion menus, in just over 6 hours. This oddly beats the 6 hours 45 min it took for the 62 min B&W film, with one motion menu. I'm thinking that the shorter film might have taken longer due to the film scratches and random white spots that were present throughout the film... Haven't noticed improved quality though over the faster CBR encoding in iDVD 3, and am wondering if the preference tab for Quality/Performance is actually mislabeled as suggested by someone at: <http://www.macintouch.com/idvd4.html> If anyone has encoding times to report, either on a G4 or G5, I'd be interested to hear them. Thanks, Rick