Hi there, I think I´m going to upload my MP3 in the Atrac format, not only because of the longer battery life but also because sound settings will only work with ATRAC.... Which format and bitrate is best? ATRAC3plus seems to bad at 64kbit and to large (about 1,4x larger than MP3) for me... What about ATRAC3 (without plus) at 132kbit or will I miss the "plus"? What differnece does the "plus" make anyway??