I ran the tapetype program from 2.4.3 on a DLT 7000 
drive in an Overland MiniLibrary Xpress and got the
following:

define tapetype DLT7000 {
    comment "just produced by tapetype program"
    length 29668 mbytes
    filemark 0 kbytes
    speed 1700 kps

The "filemark 0 kbytes" just doesn't look right to me.
Does anyone else have something else for a DLT7000?

-- 
Terri Eads              UNIX Systems Administrator
eads AT ucar DOT edu            Research Applications Program
303-497-8425            National Center for Atmospheric Research