I see my music on the mp3 player but when i open it on the labtop it shows empty file

MP3 players can only play music files in mp3 file format. You can download mp3 music files from the Internet to your computer and then copy them to your MP3 player using the USB cable. For your CD collection, you need to convert your CDs to mp3 music files onto your computer or download them from the Internet and then copy them to your MP3 player after you have connected the USB cable to the MP3 player and the computer.
You can do this using Windows Media player and Rip the CDs - Media Player will create 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

that shouldnt make a difference. if you plug in the mp3 it should give a few opition ie open file leave that open go to my documents where the music saves and brag them over

the files you are trying to use, are they mp3 format? some players wont recognize other formats like wma. There are programs you can use to convert files though.

Hi oroberts62,
Are you sure the music files you're trying to play is of the correct format? A .mp3 extension doesn't always mean the encoding is in mpeg-3 layer audio. Try re encoding all the music files using a free encoder or converter, then seeing if they show up on the player.

Remove battery in MP3 unit. Plug in computer, when drive opens showing files hit CTL-A. All files in MP3 player will highlight. Hit DELETE. Your MP3 player should be empty & ready to load with your files.

While it is unplugged, go to Settings on the Sans.
Go to USB mode and select MSC
Connect it to computer.
Open device through "My Computer"
Go to Tools
Select Folder Options
Select View Tab
Select Show Hidden Files and Folders
Press OK
You should now see the Music Folder
Delete what you don't want.

If the files aren't .mp3 or .wma files you need to convert them.

Does anything show up if you go into "all songs"?

check your file type that you are putting into the mp3 player. This is a common mistake. Most accept MP3 but not other file types such as WMA from windows media player or AAC from Itunes. If all that is good then check where on the mp3's file system the files went using my computer. If they arent in the right folders than they might not show up

when you open the mp3 player up in my computer and look in the folders, in the open window go to folders, files at the top, view and then look for show hidden files and tick the radio button, it should then show all the tracks.

There may be possible reasons why your Sansa E250 would display an message on the LCD even when you've downloaded files to it: (1) The music file type is not supported by the player. Sansa players support only MP3 and WMA files. To determine what file type your have, right click on the file type and it should display the "properties" dialog box. Check if it is MP3 or WMA. For example, iTunes music files will not work with the player, nor will WAV or MIDI files. (2) Your music files are supported but the bit rate is not within the range that the player supports. Sansa players support MP3 files up to 128 KBPS and WMA files up to 64 KBPS. You may need to use a 3rd party music file editor to convert the files to a supported bit rate (3) You may have saved your music files in a folder and copied the folder to the player. Your Sansa E250 will not recognize folders. Either save them in the root directory or inside the "Music" folder -- your player's default folder for music files. Hope this info helps :)