These files were read from an originally German Xpander with the latest OS EPROMs, in Finland in
December 2006. In addition, the sounds of this Xpander are made by the original owner, Mr. Klaus Ploch.
The set was sold some years ago for about 400 DM. Users were some of the well known composers in Germany.
 
For an unknown reason, the other EPROM images available in the internet did not work in this Xpander.
But, these images work. Reportedly, the same problem was encountered in an other Xpander in Italy also
in December 2006. According to our tests the files in the internet are different. I don't think there
are different sets of the latest American/Japanese/European OS versions. And, I don't know why the other
set available in the internet is not functioning well in our Xpanders.   

The zipped files were extracted and compared with the original files to make it sure that there are no errors. 

Tiitu