My mp4(mpio) is repeating the same song

SOURCE: repeat

the following MIGHT help:
(to clear or 'erase' skip to format -below)
1ST: Just try to 'reset' by holding down the main center button AND pushing UP on the lock/off-on button, for about 8-9 seconds,
It will then 'refresh' the database, shouldn't lose anything,
OR:
Most other problems can be fixed ultimately by the following;
REFORMAT the SansaDisk Clip by finding it in My Computer and right click then just 'format' the thing. THEN drag and drop new music into it (or books), DRAG and DROP, you apparently erase the thing with a 'FORMAT' ....BUT - it's .sys files remain and it is like new {as in empty}
This usually fixes almost anything, should even erase a virus (I'm guessing) but shouldn't hurt it.
Good Luck!

-simple 'drag and drop' from my MUSIC folder seems to work just fine for me...

SOURCE: repeating songs

When you are looking at the song that is playing on the screen that displays how far it is into the song there are a few buttons right below that in the black area, one of them is arrows in a circle, tap that until and it will turn it off, if that doesn't work tap it once more as you might have it on single repeat