Hi8 breakage

Back in the day, I shot with a Sony V-5000, the coolest camera I ever owned. Lately, I have been going through some of my old show. Problem is my Hi8 tapes seem to be getting fragile. Two tapes snapped already. The two ends are inside the cassette.

Has this happened to anyone here? Is there anything I can to keep it from happening again? What do you recommend as a repair?