The zipped image files in this directory are interleaved using the inverse
of the interleave scheme used by PDP-11 and VAX RX50 disks, so writing the
files onto raw disks on those machines (using COPY/FILE/DEV or UNIX "dd" or
whatever) will be straightforward.  The images will be useless anywhere else
though since nothing supports this format.

To write disks using PUTR, do the following:
(C:\)>FORMAT B: /RX50
(C:\)>MOUNT B: /RX50 /FOREIGN
(C:\)>COPY/FILE/DEV file.dsk B:

If you want to take a look at the disk now, type:
(C:\)>MOUNT B:
(C:\)>DIR B: