The frame size as reported by QT is 320x240 (but I am suspicious, as the source is 352x240; QT's reports are sometimes a bit off). I didn't bother to re-encode the audio -- I just stripped it off of the XVCD, which was stereo, 128kb/s total, at 44.1kHz sampling rate. Sounded just fine, but it's MP2, which has fairly heavy decode requirements (not as tough as MP3, but similar). To enable playback on machines that can barely keep up with Cinepak, the audio will have to be re-encoded to something a lot less complex (but it will either have to sound worse or have larger file sizes, or both).