If the mp3 player has a USB wire, plug that into the usb plug on your computer, then on your computer (if it is windows) go to START, and go to MY COMPUTER, and left click (double click?) this, to get a picture of your drives such as C:
One of the drives will be the internal storage of your mp3 player, and you can click to go into subfolders.
Just copy the mp3 file into one of the folders of y our mp3 player as if you were adding it to a hard drive or a usb drive.
Answers & Comments
If the mp3 player has a USB wire, plug that into the usb plug on your computer, then on your computer (if it is windows) go to START, and go to MY COMPUTER, and left click (double click?) this, to get a picture of your drives such as C:
One of the drives will be the internal storage of your mp3 player, and you can click to go into subfolders.
Just copy the mp3 file into one of the folders of y our mp3 player as if you were adding it to a hard drive or a usb drive.