Hi Guert.

You may have discovered have recently bought a KN-930 in the UK. From that it seem that the KN-1400 to 1600 are no longer produced (sorry pal!) I have learned that the KN -930 will take disks from the 720 to 3000 (BUT NOT the 5000) range. Hope that helps.

If you want to talk more try terra.cotta@virgin.net