I echo j.paychecks post above. I have been using mencoder on a PC for the last couple of days to encode some movies for the perl following all the tips on the 8100 video sticky. Works awesome. However, I would love to use my powermac to encode, figuring it will be much quicker. However i have tried to compile mencoder on OSX several time to no avail. If there is anyone out there who can post a "how to" for compiling mencoder on OSX for a beginner, that would be awesome. Hopefully someone out there can help a fellow mac user out!