Troubleshooting my sony walkman mp3

Try changing the audio source/input on your car stereo to USB.

Did you add songs to it yet? To add songs to it plug it in the your computer and import the songs to it. If it still won`t work rebuild your data base. Doing so well factory reset your Walkman and fix any bugs in your Walkman.

I get no data file error when i try to play the song in my NW-E003 SONY MP3 WALKMAN player

You can delete songs through installing supplied software CD (Sonic Stage) in computer, that software has ability to upload or delete songs in Sony MP3 players.

mine did that too it says no data but the songs are there but it wont show up in the mp3 :(

my sony walkman mp3 player model # NW-EO15F i cannot upload any songs, i wanna upload songs. but i don't know how to upload songs.please can you tell me.

I have already uploaded a solution for this problem under Tips & Tricks, because there are much more people with this problem.
Take look here

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I went to www.sony.com and was able to find the solution. If your songs were downloaded from services similar to Napster then you will have to log back into the service to refresh the licenses on the songs. If you no longer are subscribing to the service then you will need to delete the songs from your player. If you need further information you can find it on the Sony website.

What format are they? I don't think the Walkman will play M4a (iPod) files. You're best-off with Mp3 files at a bit-rate of 128mbps or 192mbps. I'm not sure if it can handle "lossless" quality music files.

This is because the player does not recognize tracks that havent been uploaded by Sonic Stage(You might have a CD of this software along with an mp3 player)