Recently, my computer has started taking way longer to rip and burn dvds. I'm on my laptop since I'm away at college, and it used to take 20 minutes to rip a dvd on it (DVD Shrink and/or DVD Decrypter), and then around 10 more to burn it (Nero). Lately, however, it takes over two hours to back up full dvds (encoding at ~850 KB/s), and almost as long just to burn them. I'm not experiencing slowdown with cd ripping/burning, just dvds, though. Does anyone have any idea wtf is going on? Why would this just start happening? And what can I do?