I have a Plextor PX-W4824A set as the master and only drive on the secondary IDE chanel of my computer. A Samsung DVD reader is the slave drive on the primary IDE channel. This is the preferred configuration in the Plextor manual. The Samsung works perfectly, but the Plextor cannot read data cd's at all. It records perfectly, but cannot read any cd. If I play a music cd in the Plextor, it will play in Media Player 9 if I click on it twice. Weird. All jumpers and connections are correct. Win XP Home. Any suggestions.