[xavier242]

VideoRedo was the first decent frame accurate lossless (mostly) editor for broadcast streams. It's still the the best IMO. It only re-encodes near the edit points to make a valid stream. The re-encoding is not visible to my eyes. The rest of the video is a lossless remux. Most sites allow it for mostly lossless remuxes.

I bought it in 2006 after getting a HDTV card. I have 2 versions installed (the one from 2010 handles DVD VOB files). The newer one handles H264 also.

A chapter file can be muxed into a MKV with MKVMerge (part of mkvtoolnix). Do some searching. There's probably tools on various sites for making the chapter file. Most home users don't bother creating them. I think I've seen maybe one video on Dime out of several hundred that had chapters.