on some track it sounds like it fast forwarded, the time laps moving three times faster ( like an old cassette player when you fast forward them ). another case play a tracks through artist it just stop at 1 song, it wont play the next showing 2/1 when it should be 2/14 or so. another case it won't show up all the tracks when i search it through artis menus, but it looks normal on directory menus. another problem is an artis have like 3 album but the album merge in 1 thumb, the whole song just in it. another problem is when first start i played artists A after it i played an artist B, but after 1 song of artist B it automatically change to play next song at artist A. i think it just about i can remember. the good thing is the gap less works & the shuffle mode wont change after it turn off.