Sansa disk e 260
I had the same problem with mine freezing. It happened when I kept pressing the back track button (on left side) to go back to an earlier song. It then froze in the middle of a song, couldn't hear the song, the time of the song was frozen, etc., and the unit stayed lit, despite pressing all the buttons. I tried holding down power but nothing happened. I read another person's post that you need to hold it down 15-30 seconds. I did this and it worked, you just have to hold it down until it shuts down, which was about 15 seconds as suggested, could be longer for others.
For me, next time I wont keep clicking the tracks repeatedly, I'll simply go out of the song and back to the song I want through the menu.
Thank you for the good posts. Glad I didn't have to mess with the battery like others....