Hello... I have a cd player walkman d-nf-421 and it supports the atrac3 plus tecnology. I have the Sonisctage 4.1 software and it let me to burn atrac cds. Those atrac cds can just be played by the discman, but I wanna play my music on my computer. does someone know how play atrac cds on the computer????? Does someone know a codec o a player to the atrac cds????? Please..... help me.... It's urgent... thanks