Things You'll Need
Instructions
Insert your DSI 4GB SD card into the SD card reader on your computer. If your computer does not have a built-in SD card reader, purchase a multi-card reader from an electronic store. Connect the card reader to your computer, and insert the SD card into the slot.
Double-click "Computer" on the desktop to launch Windows Explorer, and then double-click your card's disk icon in the "Drives" section. If you are using a Mac, locate your card's disk icon on the desktop and double-click it.
Drag music files from your computer to your SD card's disk window. Close the window when you finish.
Click the "Safely remove hardware" icon on the taskbar, and then click your card's disk icon in the hardware window that launches. Click "Stop," and then unplug your SD card. If you are using a Mac, drag your card's disk icon from the desktop to the trash bin, and then unplug your SD card from your computer.