can you hear the music/video through the speakers or just headphones?MavsFan2007

It plays through the speakers but of course it sounds a lot better through headphones.

The item jayvan linked to is a MUCH better option for music and video, it also runs all kinds of homebrew applications. At the bottom of that page you'll see a link for M3 Simply, that's the newest version of that product line which is the size of a regular DS game and only costs $45. So if you want good quality that's your best choice. You'll need MICRO-SD cards for that though, not regular SD cards like the one you saw on eBay, which are a little more expensive but not much.