Free utils to edit playback of existing IFO/VOB filesets?

[FredThompson]

Suppose you have an existing full set of IFO, BUP and VOB files, all ready to burn.

Is there a way, using IfoEdit or other freely available software, to move through a play item and "remove" sections by virtue of creating a playlist to skip over them?

My hope is to do rough editing of MPEG2 streams at the GOP level. Those are then put into a DVD fileset and control of playback done to simulate the effect of frame-accurate editing without having to do any re-encoding.

This is incredibly easy with some of the commercial packages. I'm looking for a free method, prefereably one which uses IfoEdit as I'm already familiar with it.

[tomgofly]

I use Womble.
http://www.womble.com/vcr-text.htm

It's not free but well worth the price. Excellent for cutting commercials etc. from my capture card mpeg. The only one I know of that does not re-encode as long as you don't change the format and are just trimming. Also great for piecing together clips with it's playlist.

And best of all is frame accurate!

-TGF

[FredThompson]

It's still going to re-encode the affected GOPs. That's why I'm looking for a way to edit how the VOBs are played. Each program group has a table of times and start/stop sectors. If that can be constructed properly, playback should show only the specified frames. I'm working on a project that's used by quite a few people so "free" is really important.

Thanks for taking the time to respond.