Hello. I'm looking for a player to use with linux/ open souce .i see a lot of people recommend Sandisk. but what about sony? I'm looking at the sansa clip 4 or the sony walkman. it will be used at work,mostly with music. I want something that will work with amazon,banshee, etc. Instead of itunes/ipod etc. Any problems with these players working with open souce etc? thanks.