I've installed The Film Machine and I get this same error whenever I try to encode a movie Avisynth open failure: AVIsource: couldn't locate a decompressor for fourcc DIV4 C:\program files\the film machine output\TFM_Avisynth_script_file.avs, line 2) I've got installed both QuEnc and HCenc and tried removing one each to see what happened. By the way, I've also used Avi2DVD and got the same exact error message! Any idea why? Thnx!