I don't know if SanDisk know something that i don't but i really can't see how this will work... and for so many reasons .
a/ Why go to a store when i can download ?
b/ Why buy inferior quality mp3 when i can get CD ?
c/ Why spend money on something so small the chance of it getting lost in the couch/car/girlfriend is so large ?
d/ Why bring something out in a physical format a majoity of devices can't read (without having to purchase an adaptor) ?
It seems SanDisk are trying to fill a hole in the market that doesn't actually exist .