Permanent subtitles

With which software I can compress a vob file with TMPGEnc, with PERMANENT subtitles? Even by frame server, or VFAPI. I've to compress a multi PGC, that Flask and XMPEG doesn't supports. If I open the IFO, I'm be able to choice the subtitle, but it work with ONLY one PGC. If I open the VOB I take all PGC, but without subtitles... I can't compress a sigle PGC to rejoin them in a single m2v, because I lost the synchro with original IFO. How I can do? I can use only TMPGEnc like final compressor. By the way... there is a methode to superimpose the subtitles after compression? Thanks.

Not sure exactly how it would be done with TMPGEnc, but Vobsub could probably be used.

I've to RECOMPRESS a VOB file with TMPGEnc, with permanent subtitle from the same VOB. When I've finished to recompress the video, I would to remux the original VOB with my video track M2V. I'm not sure that VOBSUB can help me... Any other idea? Thanks for answer and your intersting. Salvo

After making the AVI from VFAPI, open VirtualDub and add the subtitle filter. Once you like how your video is, start framserver and open the frames in TMPEG and then start your encoding!