I have number of tapes that were used on another site, but no longer required there, still very new (<12 mths old)
The tapes have 20G/40G uncompressed/compressed capacity. There is obviously left over data, but I can't find way of clearing the tapes. Quick erase and re-labeling does not help. Within media tab all the tapes report total capacity of 16M only! How do I format, clear the tapes to be able to use them in my media sets.
Creating new media sets and moving the tapes there does not help either.

Thanks in advance,
Filip