i used the AVIcodec program & it displays the following: Video : 606 Mb, 1233 Kbps, 23.976 fps, res. 640*272 (2.21:1), DIV3 = DivX ;-) MPEG-4 (Low-Motion), supported & Audio : 94 Mb, 192 Kbps, 48000 Hz, 2 chan., 0x2000 = AC3 DVM, supported which leaves me slightly confused i will try to demux & convert to wav but do i then need to mux back together or can an audio track be opened seperately in AVI2SVCD?