Yo what's up bro, As far as *I KNOW* the clarion dxz955 touchscreen deck (which runs at about 450-600 bux) is one of the only decks that has a harddrive. It's the same size as a regular deck, doesn't flip up or anything but it's still touchscreen I got one in my blazer. I'm pretty sure if u dont want that deck but you still want one with a harddrive, you would have to look at the decks that flip up and shit. For Clarion, the harddrive shit is labeled as "Music Catcher Technology" or somethign around those lines. It holds about 6/7 cd's worth of music, more if u burn MP3's on it that regular WAV files. U just drop the cd in, hit record and it saves it to the MCatcher option. You can't record burned cd's UNLESS they are burned as "Audio CD" under your burning options on your disc writer. Def a nice option, as far as MP3 play goes for other decks, most have a reader for CD-R's, and the higher end $200 + have the CD-RW reader too as well. Sry if I wrote a lot, im bored home from school and i hate reading a thread with useless posts from people who can't talk, let alone type in english... Lemme kno if u got any other questions