Furry

@ngeL, I use program - TuneCab   

As I've already said, I have purchased soft to convert all my file (audio and video) removing DRM 

So, if you don't pay for program, you couldn't use protected data...

Is it possible to convert protected files downloaded from Napster or Yahoo! Music, using free soft?

Thank u, guys, for welcome 

Hi! Let me advise.

There are a lot of soft to convert any type of files. You should download one and easily convert wma files into mp3. I use program TuneCab. It's not free but it remove DRM from DRM-protected files.