  TLZ DDS (DAT) media compatibility? 
 The Question is:
 
I have an Alpha 1000 with a DEC TLZ09 tape drive.  Are DDS-3 and DDS-4
tapes compatible with this drive?
 
 The Answer is:
 
  You will want to use the supported DDS level cartridges, or less.
 
  The tape drive will automatically detect and write the highest
  DDS-level density that is supported by the media in use.
 
  You will want to use DDS-2 or DDS-1, in the case of the TLZ09.
  For instance, a TLZ09 should be able to read a DDS-2 cartridge
  that was written by a TLZ10.
 
  You will not want to use higher level DDS standards or media that
  is longer than is supported by the particular drive.
 
