CDROM XA mp3 disc not playing in car stereo

Hi

I burnt a few MP3's onto a CD over the weekend using some very basic drag and drop software at a friends house.
When I put it in my MP3 CD car stereo it didn't find any files.

In Nero it says the cd is of format CDROM XA.
Is there anything I can do to make it work in my car stereo, or did I burn it in the wrong way??