Hi, I am using Fedora Core 4. I have managed to install Real Player 10 and it works. I can play music off the internet with no problems. When I put a CD in though, I get an error message. It says that this player does not have the capabilities to play this music. Also, the MPlayer appears to be playing but doesnt actually play. The volume is up and the sound works otherwise, just not from CDs. Its like this from burnt CDs and real ones. I don't know what the problem is.