Features: it has a GUI however it can be started with command line parameters (WinXP Themes support!) multiplex all streams in one step it is fast! (on a Celeron 900, 512MB ram, with a very old Quantum HDDs it takes about a) 3-4 minutes to multiplex a 800MB MPEG2 file if the input and output on the same HDD b) it is less than a minute to multiplex a 800MB MPEG2 file if the input and output file are on two different HDD) a lot of fixed bugs of SUBMUX, eg.: 'underline problem': a lot of subtitles appear on screen underlined 'disappearing subtitles': if the subtitle image was too small sometimes it doesn't appear on screen 'corrupted audio/video frames: playing sub-multiplexed files without subs -> some frames were corrupted preview subtitles after load SVCD(MPEG2) preview on Preview Tab trough D2V (DVD2AVI Project File) file format [MPEG2DEC.DLL is needed!] easily timeshift subtitles on preview tab (align subtitle time to movie frame) subtitle bitmap palette modification can handle large subtitle images save SUB file and/or bitmaps SVCD file-scan: get some information about your mpeg file