an 900MB file won't fit on a normal 80-Min CD-R. You need a 90-Min CD-R & a burner capable to go this far! And your file has to fit the SVCD specs, that means: Total bitrate < 2710kbps Videobitrate < 2600kbps and has: MPEG-2 480x576 25fps if it's PAL MPEG-2 480x480 23,976 or 29,97fps if it's NTSC And Audio has to be MP2