To upload music/photo/video files onto your player, make sure that the MP3 player is turned ON and is in the UNLOCKED position. Plug the MP3 player into the USB port on your computer. Then, go into the folder that contains the music files you wish to upload. Click or highlight on the files. RIGHT CLICK and “Send to Removable Disk E” (or F depending on how many drives are on your computer). OR you can also drag your music files from the folder and drop them into the “Removable Disk”. In some models, you need to create a folder on the player and name it MVIDEO for storing the video files.