DESC: Check out the new look of PSYC MiniDisc players. The MZ-DN430PSBLK has the huge capacity of a MiniDisc player combined with long battery life. Listen to music for up to 56 hours using only one “AA” battery2. One standard MiniDisc stores up to 177MB1 of music files, so you can listen to your favorite tracks for hours. Transfer MP3 and CD files to the MZ-DN430PSBLK at up to 32X speed. The Skip-Proof Design4 lets you play back your music virtually uninterrupted.