need some help here

[natsume]

how do i convert aac and m4a to mp3? when i try to convert it this msg pop out

Error converting to mp3 (Lame), 'E:\New Folder|Track.M4A' to 'C:\Documents and Settings\natsume.
Error Chunk is out of file. [clMP4Handler::Scanfile]

[Spoon]

Can the file play in any other player?

[natsume]

i didn't try yet coz i want to burn it into mp3 cd for my car