Music how do u put music it keeps saying I/O device error

Format error means the file type is incorrect. you may have downloaded MP4 or WAV files. They need to be MP3 I imagine and be in te same bitrate as the player. The player probably came with software for converting files to the proper format.

Connect it to your computer and with iTunes, reset the device to the factory settings.

Hi,
Try formatting your mp3 player then putting the music back on.
Please comment if this doesn't work or you need further assistance!
Goodluck!

boot error shuttig down sony NWZ-B133F

I tried playing music on my music player off my memory card and its saying microSD does not contain supported music files? How do i fix it?

MP3 files come in different resolutions try to load some different MP3's (from a diff source) and see if those work, they should. BionicSam

Check the format of the music you are playing and if you have music that requires the license it will load the music but not play. It will show up as a file error.

sEVERAL POSSIBILITIES:
* You downloaded protected music on your Windows 98/98SE, Windows 2000, Windows XP computer using Windows Media Player 9. Music was purchased online or the music was ripped form your own audio CD with Copyright Protection turned ON.
o You must use Windows XP and Windows Media Player 10 for online purchased songs.
o You must turn OFF Copy Protection on your Windows Media Player 9 before ripping your audio CDs into WMA files
* You downloaded protected music to your MP3 player using your Windows XP computer and Windows Media Player 10 with your player in USB mode. Music was downloaded from the internet, purchased or subscribed, or it was ripped from your own audio CD with Copyright protection turned ON.
o You have to use your MW3836 in MTP mode.
-Tha Mp3 Doctor

try just sending music from your pc to the memory card

You need to change your USB Port... try the back of your computer. Or you need a firmware update.