Thanks for all the replies re the above. It would seem that the problem is, as suggested, due to the incompatibilty of NT and the Rockridge Extension - I note that the CDs are marked "ISO-9660 Filesystem with Rockridge Extension". We are in the process of setting up an NFS server and this should overcome the problem. In the meantime I have FTPed some of the contents of CD1 to a partition (minidisk) within my Linux v/m and attempted the Yast "install from a reachable directory". Yast can now see the pre-genned kernel and configurations but the installation has errors ("can't get PREIN for cd1/suse/a1/aaa_base.rpm, aaa_dir.rpm, aaa_skel.rpm") and the generated kernel will not boot properly ("No inittab file found"). Still it's progress of a sort and seems to prove the Rockridge point.
Once again thanks. Dave Coulstock Systems Programmer Danzas Information Technology Tele: +44 (0)1784 871 398 Fax: +44 (0)1784 871 244