Ok, 'thanks' for not enabling me. I've got 'ls -l'
From my working flash gives drwxr-xr-x, from the mmc it gives drwxr-xr-x.
So, I guess I was wrong about write access. If there is no easy way to fix this I guess I just re-clone my flash.

Or should MyDocs be drwxrwxrwx? and how do you change file permissions?