Which do you like better and why? As I've posted in another thread, here is my reasoning.

I would personally go with the MD player. I have had one for about two years now, and it still works like it's brand new. I own the Sony MZ-NE410 version. Sure you download them on discs, but they can hold a good amount. Even if you do have to carry them around, I'm sure you can carry at least five in your pocket without noticing it. Usually when I download songs on a Mini Disk I just take off songs I dont listen to that often and put the new ones on so I only have one small Mini Disk in my MD player. I wouldn't choose the MP3 player for severel reasons.
1.To expensive (The cheap ones dont work)
2.Not as cool looking (Personal Opnion)
3.Better Sound Quality, MP3 players dont seem to sound as good as a MD, thats the main reason.
4.MD Sony is recommended by many magazines ex:consumer reports.

here's a reason why to choose a mp3 player

I'm a snowboarder and when I go on a full day at the mountain, i listen to music.Mp3 player is good for me cause you are not always changing the disc and you have a lot of music on it. i don't like to listen to the same music over and over in one day. there is already the batteries i got to change very often, i don't wanna change disc too. And a mp3 player might be bigger but when you have a snowboarder coat, there is enough place to hide it in.

What about NetMD surely a combination of them both to a certain extent !? I own a MD have done for years but am now saving for an ipod so it prob mp3 if i had choice (and the cash!)

I looked into both when I was buying a player and mp3 is definately the way to go IMO. No disks, easy to install music, longer battery life, no moving parts, stores more music and less to carry around for what you have.