Thanks. I have a Plextor PX-740A cross flashed to a BenQ DW-164B in my test computer running Vista Ultimate 64 Bit. I lam a Newegger. They have the Pio's for only $30.00. I can get a Sony DRU-810A, which is a BenQ DW-1640. If the Pio 115D is really as good as everyone says it is, I will get that one since my Plextor PX-760A and PX-716A do not do RAM. Thanks for the input.