Check sum error on is40

[teksteppa]

Hi,

When pressing Arr.play and gloabl/disk on start up my Korg is40 shows an error; CHECK SUM ERROR FC

I've also tried to download a set of files from here for the Korg i-series ;

http://zine.r-massive.com/korg-i-series-factory-disks/

I assume these i-series files should work with the Korg is40? I downloaded the files and then added them to a floppy disk, however when loading - it loads and then throws up an error 'missing program'

Does anyone know how to A. fix the check sum error and B. sort the 'missing program' error, and load the factory disks from the downloads on the zine.r page.

Thanks in advance......