content: The Rio 800 has had some poor press, but the problem is not the player but the documentation accompanying it. The battery seems to be a major problem until you figure out that it must be calibrated several times until the screen says, "the battery is calibrated" and not that there are 0 minutes left to charge. By the third time, I finally got 10hrs. playing time. The sounds tends to be a little "tinny" but that is a headphone problem and the sound can be adjusted on the device. I'm not a "tech" type, but you just need to play with this for a while to learn what it will do. Then, you'll be more than happy for the price.