I loaded songs onto my sons mp3 player from windows and when we try to play the songs it reads error format.

The song you are trying to play on the MP3 player is probably not MP3 , or it is a format that the MP3 player cannot read.

MP3 players can only play music files in mp3 file format. You need to convert your CDs to mp3 music files onto yourcomputer or download them from the Internet and then copy them to your MP3player.
You can do this using Windows Media player and Rip the CDs - Media Player willcreate a MP3 music file for each music track.
Click on this link for instruction on converting music files to mp3 file format:- http://www.fixya.com/support/r5798418-creating_transferring_mp3_music_files

? i got that too

I had a hard time trying to figure out why my mp3 player was reading fornat error! when it got to a certain song. I looked through my device and saw it had 5 folders and i hidden...what was this hidden thing...and where was it? I got the bright idea to open each of my files in this particular folder and I discovered that a song I had downloaded off of limewire had a hidden file on it and it directed me to a **** site when I tried to play it in windows media player. That is why the mp3 player read format error! when it would come to that song. So, try playing them in windows to see if you have any hidden **** attached to a file.

This is an "Mp3-CD player," which is not the same as an "Mp3 player." This device will only play mp3 songs that are recorded onto a CD in audio format. It will not take songs from iTunes, etc. By the way, iTunes songs are AAC format, rather than Mp3 format, so you can't just burn iTunes songs onto a CD and expect it to work with this player either. Sorry.

-Tha Mp3 Doctor

try formating the mp3 player and then get the new frimware for it and the putting the songs back on there were did you get the song from

The songs/videos you tried to load onto the player are probably not the right format. Ir looks like they transfer, but then you cannot play them. For more details on this, read my "Tips and Tricks" at the bottom of my profile on song formats (2-part article)

The song format is most likely wrong:
read my "Tips and Tricks" on Song formats for Mp3 players: too long to repost here

Song Formats for Mp3 Players Explained
By Tha Mp3 Doctor
I have seen quite a few threads around Fixya in which the stated problem is that the Mp3 or Digital Audio Player will not load the songs; will appear to load the songs but will not actually play them in the Mp3 player once disconnected from computer; will skip the songs on the player, or show only “0:00” for file length; songs “disappear” all of a sudden (although this particular problem can be caused for many reasons not covered in this article); your store-bought/burned/ripped CD’s will not load into your Mp3 player; or get the error message “File Format Not Supported.” All of these problems occur because the user is trying to download a song format that the player does not recognize. Every music file is in a certain format. The most common music file formats are Mp3, WMA, AAC, WAV, RA, etc. Each Mp3 player only recognizes a certain number of these formats. Every Mp3 Player is different. You will have to check your Mp3 player’s product specifications (specs) or user’s manual to find out which formats your particular Mp3 player recognizes. When you try to download or sync the wrong file format, you will get one of the errors that I mentioned above.
Or, it could be a "formatting" issue:
There are two ways to format an Mp3 player - one on the computer itself, and one in Windows Media Player. Both methods will end up erasing all the songs on the player, but the player will be "good as new" after that. Sometimes reformatting in this manner will override the player's native formatting and cause problems - this can be reversed in most cases by updating the player's firmware. Firmware upgrades are available from most manufacturers' websites.

WARNING: The following procedures will erase all songs on the player.

Check if the file system is NTFS. If yes, format it to FAT or FAT32. - Connect player to computer, double-click my computer, right click on icon of mp3 player and select format. This only applies to Windows-based computers.
You can also format the player in Windows Media Player itself:
Connect your Mp3 player to the computer and open Windows Media Player. Click on the Sync tab. Pull down the drop down menu underneath the Sync tab by moving your cursor over the Sync tab and left clicking on the little black arrow underneath the Sync tab. Highlight "name of Mp3 player here 1GB" (wording may vary slightly), and then select "Format." - this should erase everything.
-Tha Mp3 Doctor

The songs you loaded onto there are in the wrong format

hi i can not transfer files to my yepo mp3 it says my comp dosnt support it i have windows vista loaded the manual says i must convert ACT to WAV format could you please tell me how to

thanks