This is a good program for anyone who wants to change DVD subtitle colours.
By simply loading any .srt file, you can test colour combinations for text and outline, then generate the codes for IFOEdit.
These colour codes can be easily entered using IFOEdit and saved to the DVD IFO files very quickly.

If the source video is mpeg2 compliant and 'Project Settings' > 'Video' > 'Advanced' is set to 'Copy MPEG-2 Streams' then the source will not be encoded - merely demuxed/muxed/authored.
This speeds up the whole process.

Now that the FFmpeg library is available as a plugin, you can also import AC3, DTS and other audio types.

There is a GUI version available.
www.doom9.org/Soft21/svcdtools/VCDImagerGUI.zip