daicaothu

Hi all! I'm a newbie in MD technology First of all can anyone tell me what's the differnce from Nh600 and nh600d? I just bought the NH600 for few days and the main problem is I can't transfer my music in mp3 format to the MD. Everytime when i Try to transfer a MP# file to MD, it always appears this note: It's strange that I could transfer *.wma to MD. BUt you know the quality of wmais not so good as mp3 or wav. Can anyone help me to solve this problem? Thanks in advance.