Well I've got a longish history with both kinds of these digital players. Back on one of my trips to Hong Kong a far few years ago now (3-4) we picked up a Sharp MD n20 (I think) which Mum now sometimes uses. We also got a Pine MP3 player SM-320V one of the players that seemed to be reviewed everywhere and it was pretty good with it's built in microphone, but it only has 32MB storage so I could store very few songs on it (under 30mins). But with the MD I would use the optical out from my SB Live 5.1 Plat's 'Live! Drive' and record my MP3's to 1x Atrac and I was pleased with the results. But there was no possibility of ever being able to run with the player without it skipping to a stop. On another more recent trip to Hong Kong at the end of 2002 I picked up a Sony NetMD N505 along with 10 MD's and have never been happier. It's soo quick and easy to move my MP3's to my NetMD using the USB cable. hooked to the computer I havn't even touched to other cords that came with it. By buying in Hong Kong we saved $100 or so. I have pretty much never heard it skip even when running and it's in a cargo pant style pocket. I record my MP3's with 2x Atrac compression which means I can fit almost 2 1/2 hours of songs. I set it to shuffle repeat and go on my way. It's as easy as a dedicated MP3 player. I also cut MD's for my friend who doesn't have any good MP3's (he's a n00b) nor a NetMD. It's so easy and fast. The OpenMG software is pretty good, you can even use realplayer (worse) the 3 time checkout thing is easily overcome by deleting the song from OpenMG and reimporting it. Anyway I guess I'm all pro MD because it suits me so well, and I don't have that many songs that I always want to listen to.