Here's the way I do it using free tools from videohelp.
Copy the VIDEO_TS folder, or VOB files from the dvd to pc.
I use PVAstrumento or PGCDemux to merge and demux the .Vob into a m2v video, ac3 audio file.
I use Mpeg2schnitt to load the m2v, ac3 (PVAstrumento will create an index for Mpeg2schnitt. (ac3 only)
You can change the language from German to English. (Mostly)
In Mpeg2schnitt you can cut out parts you don't want, merge m2v, ac3, or fix audio video sync.
caveat; you can only make cuts at certain places (I and P frames I think).
But usually it's close enough for me.
Very little or no loss in quality.
Mpeg2schnitt will then create a mpv, & ac3 file that can be muxed, multiplexed for whatever you plan on doing with the video.. I use Avidemux.
I usually burn the video back to DVD, I use DVDAuthorgui, Muxman, or DVDstyler, To turn the mpv, ac3, files to Video_TS folder. I set my chapters, then use IMGburn to burn the folder to DVD. DVDshrink to make it fit a DVD.
I do this quite often, I record TV shows, movies, (cartoons for the kids) from Dish Network HD, in high quality.
I cut out the commercials or merge 2 or more DVD's to one dual layer. or, cut out unwanted video from my Sony
Hope this helps.
Edited by 12x48y, 04 January 2012 - 01:19 PM.