Yes, having re-read the OP it doesn’t mention playlists.
Which is a shame.
What the OP should do is make a playlist in WMP and then sync THAT to the player. Otherwise the will plaAy in the order of track numbers it finds in the ID3 tags (and if it finds the same track number, alphabetically through the filenames with the same track number).
The OP can, if desired, copy all the tracks to be played into a new folder, rename all the Album fields as a new album in mp3tag and then put the track numbers in order, but…that’s what playlists are for.
Otherwise the Sansa doesn’t care which songs you sent over in which order. It goes by the ID3 tags. It will play Songs in alphabetical order by title, Albums by track number, Artists alphabetically album by album.
