Sony computer User Manual
Why can't I save music files onto my Memory Stick media?
Only MagicGate Memory Stick media can be used with copyright protected data, such as music.
Copyright protected music cannot be checked out to any Memory Stick media other than MG Memory Stick media.
Using recorded music requires permission of the copyright holders.
Sony is not responsible for music files that cannot be recorded from a CD or downloaded from other sources.
Page 174