I haven't checked this thread in a while. DVD Decryptor has always taken a while, but it never took 11/2 or 2 hours. I've had the best and fastest results with 1) DVD 43, 2) DVD Shrink, and 3) burning to disk with a free version of Nero--it came along with my DVD drive, but I've been told that this version is available for free on the Nero website . A friend of mine uses expensive programs like ANY DVD/Clone DVD 2 and VOB Blanker which works great--if you wait about 2 to 4 weeks, freeware updates (like DVD 43 and Shrink) will do the same things. Good luck.
P.S. My personal favorite for burning to disk is Roxio, but Nero works just as quickly--they both burn to disk in about 10 minutes (or less) once the movies have been decrypted (about 1 or 2 minutes) and encoded (about 15 to 20 minutes).