Video overlay on UHF commentary track

[NerdWithNoLife]

On my copy of UHF on DVD (which I highly recommend purchasing), there are two parts on the commentary track in which Weird Al overlays himself over the video of the movie. The bits are a pretty funny testament to Al's geeky ability to use lesser known DVD features, and play just fine on a standard DVD player (either way, commentary or normal mode).

However when playing from VLC or indexing via DGIndex or DGMPEGDec, the video skips dramatically and the overlay intermittently appears.

This is a unique case I've never encountered. Does anyone have ideas on how to index the clip as a player would, without the skipping? I can post a sample, which is probably the best way to diagnose the issue, but only if permitted by our fine forum admins.

[TheSkiller]

Sounds to me like it was done using multi angle.

You could demux one angle with PgcDemux (http://www.videohelp.com/software/PgcDemux) and then index it. That should work.

Or maybe it was done using two program chains (PGCs) which are, for whatever reason, interleaved with each other. In that case you could do almost the same: demux one PGC and then index it.

[NerdWithNoLife]

You guessed it; PgcDemux did the trick. Thanks much!