I can access the A805 like a normal thumbdrive, but i don't think I can transfer mp3's to and from the ps3. For one thing, the copy option is grayed out when i clicked on the mp3 on the player. And if i copy mp3's to the player, they'll just sit in the music folder. I can't playback via the walkman. So I guess the A805 works like a normal thumbdrive when connected to the PS3. Sonicstage is still required to transfer songs....