While writing this post, i am ripping a 2 hour dvd. I am on a Pentium 4, so it takes a while. If i use H.264, I get an ETA of 5 hours (yikes!). If i use mpeg-4, i get an ETA of 1 hour 30 min (I am now imagining how fast it would rip on a Gulftown [six-core] Core i7), and I really dont care about quality (unless it is lower than 360p), so i am using this.