Running NBU Datacenter 4.5 on Solaris, I did a Duplicate of six tapes a few 
months ago and ejected them from the library. This morning, I Moved them back 
into the library. The Volume Configuration is in sync and they appear to have 
gone back into the Duplicates volume group.
However, when I go to catalog to verify the contents of the tapes, I get the 
error "Found no imges matching the selecten criteria". My only selection 
criteria was the Media ID#. I then tried to import one of them and got the same 
error.
So, the tapes appear to be there, but I can't access them. Am I missing 
something elementary?