Ah thanks for explaining. I always thought that converting from one format to another would have some sort of consequence. Most of my songs are in WMA format. But still i'm listening to my walkman in the car via a Plug in FM transmitter. So i always lose a lil quality. anways im wandering off the point here....sorry **EDIT** Just on that note, What is the difference between ATRAC 3 and ATRAC? they're my two options for sending songs to my walkman or else just send in original format. but i know what that is. Just wondering about the differece on the two above also which is best? (if both at same rate kb/s)