hi! i'm new around here, and i have some general questions about the minidisc concept. i wanna buy a mz-rh910, and i heard it comes along with a 1Gb Blank discs. my questions are: 1. can i store a 1 Gb amount of info(mp3, other pc files) on the disc, or do i have to record it by seconds? 2. does it support mp3 files in different bit rates? 3. does it support usb 2.0? 4. can i access folders inside the disc while playing? 5. does it have a built-in radio? 6. how long can i play the md continuity? thanks. p.s i hope i put the questions in the right place. if not, please tell me where...