Can a GBA read MP3?

[Miretank]

I have read something about Yan-Play, but there's some other method to listen mp3 files with a GBA?

[xneoangel]

http://www.viewonline.com/pages/articles/innovationmp3.htm

[Miretank]

Thanks, it looks cool. :)
But I wonder if there's a home-made solution for this? Like, using a flash card?