Disklavier

Within the "Popular Songs" File there is a file called Range.net.
In this file are a great many songs already converted to .fil format.

Only problem is that there are too many for a disk to hold. I tried 
extract the piano.dir along with 25 selected songs. My piano played 
the first but did not go on to the second song. Anyone have any ideas 
as to what the problem is?

Thanks, Bill