All my iTunes AACs work through MM with my Walkman.
Also keep in mind a Rockboxed Clip will play AACs.
Now my rule of thumb is everything i buy digitally, i do not transcode.
If its 320kbs or 256 AAC its stays that way.
Anything i rip from a CD i do as Lame V0 for my walkman.
Edited by paulypaul - 8/26/10 at 7:55pm