Hey.
1: Yes the files were converted. Just to make sure I downloaded the test file made (and tested) by another user on these forums.
2: As far as I am aware, I just needed to copy the files named 0000.ad4, 0001.ad4, etc to the SDcard root dir?
3: Ok. If the file tree is correct, then I will try a different card.
I don't have a shield to test it with, as money is tight at the moment, and I've never needed one. Please let me know about the file tree if you can, as I can't find any info about it on the web. Cheers!