[linux-audio-user] MD Sony question

Hi! I'm brazilian... so... please, be patience with my horrible english... I don't know this list is the right way to post this question... but... maybe you can help me. I want to buy one MD Sony portable walkman. Sony say it's possible record mp3 into that MD (one Net MD MZ-NE410) http://hardvision.com.br/produtos/MZ-NE410_full.jpg But in Brazil this player is very expencible :( And I don't intend pay a lot of money in one player without use for Linux. So... I have two questions: 01 - For record mp3 in one MD, my MD disk use mp3 files or one conversion for audio data? It's important because if one MD don't suport mp3 files, so... one MD just can give me one small space! Correct? 02 - Exist support for Linux to one that MD player? 03 - OK, three questions! How work one MD? Have one file system like pen drivers? Thanks and verry sorry if this questions is in one wrong list! []'s Alexander Brazil - Rio de Janeiro