Emax

Hi, I have EMAX (I) rack unit, floppy only, bought new in 198X.  It's
been stored for quite some time, but now I'd like to revive it.  I
have many sounds on floppy disk for this machine but one I was hoping
to play with now has died.

When I load it comes up with CRC ERROR and refuses to play or even
show the Presets.  This is an 'official' floppy with the EMAX logo on
it. (I have no dup of this diskette, obviously..)  Of course many
other sounds I don't care about work perfectly.

First, is there a way to find out WHAT preset is dead?  Or maybe the
OS on the floppy?  Are there any workarounds?  

If not, I would pay $20USD to someone duping and sending me

"Rock Guitar Lead/Rhythm" "ZD709".

I'd appreciate any advice!  I do have EMAX documentation but they
don't say much about any recovery from this CRC check error.

Thanks and I'm glad this forum is here.. I love the EMAX, I used to
really understand how to manage it, and I guess I need to learn again.

Karl