OK I took 11 mp3 tracks from the internet, used swith to convert to wav(properties says wave sound)all tracks playable on pc at this stage. Next I launch express burn and try to burn them on to cd/r all seems to go well, compression, burning all tracks, lead in lead out, your disc is ready for use. Then I try to play it on my home player or on the computer and it all works and looks normal but not a sound is heard no error messages nothing. I running xp and have performed this process many times before without a hitch, whats going on here now, any answers i'm stumped