Sony walkman NW A3000 20GB

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

Use SonicStage Software to transfer files. Windows media player will not work on these walkman.

Hi,
You can add music files in Sony NW-E305 mp3 player through Sonic Stage software only.
Click Sony Support to download Sonic Stage software, install it in computer and transfer mp3 files in player.
Thanks.

If it is Sony NW-E105 mp3 player then you need to download Sonic Stage software from Sony Support and install it in computer to transfer music files.

download the latest drivers, then restart pc, then turn on device, then hook up to usb, then go to start menu, then my computer, then find your device and double-click to open the files.
Or go to media player 11, sync device and transfer the songs to music file.

ive got the new version of the sony sonic stage downloaded onto my laptop,and when i plug my player into my laptop via usb cable,the player itself is recognized straight away as a harddrive/removable disk etc,and you have to transfrer music onto the player as from sonic stage music library,and you also have to creatate you own music library via sonic stage,and u can also transfer music from your own music library wich you use via windows media player,and also u can transfer a cd into you sony sonic stage music libraty,and this is similar to when your using the windows media player as to rip a cd or transfer music onto an mp3 player,as i use all diffrent types of mp3 players myself,and i find the archos gmini sx 202 player to be pretty awesome player,as ive got to of them as well,and i use windows media player as to transfer music files onto them,and i cannot transfer any music files onto the sony ones via windown media player as those music file wont show up on the player at all,and ive tried this myself,and it will only work via sony sonic stage.

try using the windows media player to load your music to it

I hade just that prob. "format error" used to display. I did this:
1. dwl sonicStage (free)
2.- in the walkman went to menu/initialize/format
then displayed a confirmation screen, I confirmed
it displayed "formating...... COMPLETE"
3.- THEN plugged into the PC and transfered songs with Sonic
and it worked!

Walkman does not save individual mp3 files

because you formatted your mp3 thru the computer, if your mp3 has an option in its sytem you may format it here. and you should download the songs thru the sonique stage, you can not transfer directly coming from your win amp or windows media player because of different file format