Sabre_Rai When you compress MPEG 4's using .ASF, I presume you use Windows Media Encoder? What version? By the way, the MPEG 4 encoder won't register via regsvr32,exe. Keep getting the message: "Dllname was loaded, but the entry point was not found. Dllname may not be exported, or a corrupted version of Dllname may be in memory. Consider using Pview to detect the file and remove it." (I don't have Pview, either.) Just can't seem to find a self-installing MPGEG 4 encoder! Anyway, (maybe because of the failed registy), even though the encoder is now in my Windowssystem directory, my Bryce animation export menu does not show the Microsoft MPEG 4 option, as yours does. Nor will it show up in Virtual Dub. Presumably not accessable by any program yet. Any hints?