How to CREATE AND TRANSFER MP3 MUSIC FILES?

1st - You need to convert your CDs to MP3 music files.
You can do this using Windows Media player and Rip the CDs - Media Player will create a MP3 music file for each music track.
There are also Freeware CD RIP programs on the Internet that embed the music title and album title automatically into the mp3 file.
OR
Download MP3 music files from the Internet, some sites will cost money to download these music files.

2nd - connect your MP3 player to your computer using the supplied USB cable. The computer will see this player as an external storage device, Just copy the MP3 music files from the computer's hard disk to the MP3 player.

I suggest you create a album/title folder for each CD so you can place the MP3 music files by that artist into that folder. Then copy these folders to your MP3 player and you will be able to select and play your MP3 music by selecting the album you wish to play.

NOTE - When the USB cable is connected to the computer, it will also charge the MP3 player's battery.