This has happened to two cameras. You see I'll put a tape in and then review it, and I guess it's a bad tape because I heard some weird noise when fast forwarding and the next thing I know, the time-code is always at 0:00, and the camera detects absolutely NO footage when there is lots of footage. All I get is a blue screen when I hit play

I thought it was the cameras fault, so I got a new one. And that same tape was playing fine, until I was fast forwarding, heard a strange noise and now this camera has the time code at 0:00, and detects no footage when I play it.

What the hell is going on here?? Can someone please tell me how to fix it. Furthermore I have VERY IMPORTANT footage on this tape that keeps on screwing up the camera, so how am I suppose to get it off??