Why should I buy this MD player ?   Well , it has a lithium battery that lasts for 24 hours and it has a 160 second anti-skip mode for when you're playing sports .   What else ?   Using MP3 mode , you can download about 10 hours of music from either your CD player , or your computer's hard disk onto one mini-disk .   But how's the sound quality ?   You can choose from several play modes , or you can use the full-spectrum equalization , 3 D mode and Mega Bass features . We rec-ommend using it with the studio monitor headphones . 