The 310bt reads files according to the order they are placed in any given folder originally. For example if you select files 01.mp3 through 05.mp3 then drag and drop all 5 files by grabbing file 03.mp3 the order of the files in the new folder will be 3,4,5,1,2. To have files show in the order they appear in an album you must first make tacks an option to sort by in explorer, sort by tracks,then copy files to new directory by selecting all files in album and then dragging files over using the first file in the list. If you copy a folder containing incorrectly placed files their placement will