We're on Retrospect 15.1 - but there still seems to be a check-box for fast catalog rebuild. I guess it doesn't do anything?
Sounds like I won't be able to read the data on my 5 tapes then. Whenever I try and add them to my working catalog as a repair I end up with a catalog that can't be searched. I thought that the corruption was from the fast catalog rebuild I guess it must be something else instead.
I'll try your suggestion, but I fear I will just end up with another unsearchable catalog.