Oh man, I've been ripping these for over 1.5 months now. Everything is lossless, so I'm basically just copying the .VOB files and removing the residual copy protection. Each disk takes around 15-20 minutes to copy. I just have a 6-core Phenom with 16GB, so just about your average computer these days. I may change to MKV at some point, but at this point I wanted to preserve the DVD functionality. I did have 2 DVD drives hooked up, so I was able to rip 2 disks simultaneously.