Song sort skips but works on the computer

This is a format problem. Most likely the file (mp3 presumably) is a VBR (variable bit rate) file. Since the algorythm which calculates the next bit hexing value can be different from device to device, it may or may not play correctly with the given player in question. Windows has a much larger array of methods to handle a VBR file hence it's playback stability. If you use winamp, you will sometimes hear a squaking sound (audio artifact) or chirp for a very brief second. This "hiccup" can be recovered as winamp and similar players know how to continue reading the file. (They can parse data that was cached) Whereas the sansa's firmware for playback can be glitched in to "next tracking" the song or stalling the codec being used to convert the data into audio. (DAC conversion) To solve the problem you will need some form of audio conversion software. Soundforge is top notch for this. (http://www.sonycreativesoftware.com/download/Step3.asp?URLID=3716&SerialNum=) Sony bought this package off of SonicFoundry so it's not quite the same. (SonicFoundry's version was better) but you basically open the file in this program or one like it. Then click FILE then SAVE AS and a screen will let you pick the format, etc. Select MP3 for the format and 128KB for the rate. This should solve the problem. If you have the CD, rip it to wave and use a program like sound forge or Xing's AudioCatalyst to convert the CDA into MP3. Just DON'T EVER use VBR in your life EVER. Hope that helps.