hey guyths! just ordered a refurbished zen micro, it looks cool and all and i cant wait for it to get here, however, there are a few things i'd like to know about putting music on. basically, all i want to know is....... does the file have to be in mp3 or wav format, and how do i change it? can i put music from my pc that i have downloaded onto it or do i have to put in an album form? also where can i legally download albums from?