these are the md5sum verification checsums for the files presented here.

264ef3b7ee359ab7e184f2d268a12019  3XB-1OF4.DSK
e6df6160887e47c0a9dce4e1e0986e20  3XB-2OF4.DSK
e348b3fa735fe25f1fdf93b9172f5778  3XB-3OF4.DSK
6c48cc6322922dcf359f4d1e5088053f  3XB-4OF4.DSK
7e1da7a9dd58169b603649058f9edbae  3XBOOT19.DSK
e1706f42b05e44bcb7ddbfbfa9f27812  3XBOOT25.DSK
4340631792477885fa4cc923b3dbedc2  Z12-1OF4.DSK
3f377c5d758ff5073d4f7064f82d30e9  Z12-2OF4.DSK
402df68d150bb0d4c67f595b057d45d1  Z12-3OF4.DSK
3a0dd5bad40a30c42e19e8240b8fece4  Z12-4OF4.DSK
d2d4cf257b2a2f4f4c3092aab76c940a  zuesdisk.zip