Best software for ripping DVD's to AVI format with full Dolby 5.1

MakeMKV does sound quick but (someone please correct me if I’m wrong) I don’t think it actually compresses the file, so they’ll be as big as ISOs… in which case you could just use ISOs and save yourself the hassle (plus you then have files you can easily burn to disc if need be).

My preferred method for making MKVs is to use DVDFab HD Decrypter to rip the DVD, then run it through Handbraketo make an MKV.

Both are free.

The resulting files should be significantly smaller for little to no quality loss.  The downside is it’ll take longer to encode.