i'm having one of the most common problems a lot of people is also having in this forum, i can't open the vdr files with the tmpenc, tried everything i read in the forum with no luck , so i tried to use another programs and seems i had luck . I used submux to join subs and avi file ,i have xxx.avi file, then used the xxx.avi file with the tmpegenc and i have a mpeg file with the subtitles permanent in it. u need to have ssa subtitles file and the original avi file. u can convert srt to ssa with srttossa converter. once u have finished with submux close submux and open tmpgenc and start converting to mpg. Hope this helps.

ps: do not try to watch and use fforward in windows media player, don't know why but this makes the xxx.avi get invalid. The submux is inside vosub program.