Description: The MCMD-R1 is a quick and easy way to transfer data from your Memory Stick media to a Hi-MD disc. With just a push of a button, you can start storing all your data on Hi-MD discs, which can hold up to 45 hours1 of music each. The great thing about this Memory Card Reader is you don't need a PC to use it, and it's incredibly portable. It operates on 4 AAA batteries, so you can take it anywhere and back-up your files on the go.