what about the new version of dvd2svcd without Iauthor support? Give it a try.
To use the new version and avoid another 24 hours of video encoding, do the following:
1) start the process using the new version with all settings that you want. Use a new folder to output files;
2) few seconds after the begin of CCE work, cancel CCE. Let DVD2SVCD working. It will probably crash at muxing step;
3) copy the old - and already encoded - *.mpv file generated by CCE in this new folder of work;
4) use crash recovery to restart from the step that goes after "video encoding" - probably "muxing and cutting".