Disklavier

I'm trying to copy to a USB stick my smart pianosoft floppy discs.  I have an E3 piano and having all my smart floppies in one USB stick will make it very convenient for me.  No more floppy discs to handle!

The problem is once the songs are copied over to the USB stick using RootaRipper app, the songs are automatically arranged alphabetically.  It loses the correct order of songs as listed in the accompanying CD

I noticed that the E3 controller generates and stores a file with an extension of .MNG in the USB stick.  It seems to be the repository of file names and titles.

I tried changing the song order in the .MNG file but it's a hit and miss.  I also added 01, 02 03 and so forth in the beginning of song titles in order to force the correct order.  Still, I can't make it play in the right order in the disklavier.

Any tips I can try?  Thanks.