Not sure I understand the question but here goes.
I use DVDFab "BluRay Ripper" to rip BluRays directly to a single ".mkv" file. It does no re-encoding just a copy from the .m2ts files(usually is multiple files) to a single ".mkv" file. Although lately (since version 8.0 came out) I've been ripping to a single ".m2ts" file. I haven't bought the DVD portion. At least not yet but when I expand the options on the "DVD Ripper" it looks like it should rip to single files there as well. For DVDs (which I don't
buy any more - if I can help it anyway - just BluRays) I'm still using AnyDVD and CloneDVD mobile to rip to single files.
I was ripping some dvd's last night and there are multiple settings for mkv. I set it ti remux, which from I read is uncompressed? I want to copy the movies to my unraid without losing quality 1:1. Would the mkv file be an exact copy of the movie? Does mkv stream well to most streaming devices?