It seems my MP3 player, doesn't handle numbers at he begining of the file names very well.
It also seems like the MP3 player only uses the 1st 2 letters to put songs in alphabetic order.
the 10 songs I wanted 1st, I titled AAA XXXXXXXXXXX.MP3, the 10 songs I wanted in the middle I titled AA XXXXXXXXXXXXX.MP3, and the 10 songs I wanted last I titles ZZ XXXXXXXXXXXXXXXX.MP3, then I had 10 songs with regular titles XXXXXXXXXXXXXXXXXX.MP3.
the MP3 player mixed together the AAA files and the AA files. The regular files were placed in the middle, and the ZZ files were placed at the end, so I an almost there.
The files are correct on the computer, but when they transfer to the MP3 player the get rearranged.