It gives me an error, but when I put disk in computor it fine.

Cheers,
Chris

You might try another disc.
Assuming that yours has the navigation, it should definitely be able to play.
I'm not sure of non-navigation models.

from my understanding all 2005+ STS radios do mp3, it could be the format in which you made the disc. also try closing the disc, don't leave it open as i noticed most non-pc playing mp3 cd-roms will not read it.

Another tip when you're making the CD - select the SLOWEST speed offered for your burner. A slow burn makes a more reliable disc - especially when read by systems other than the one that made it.