[hamid_1]

A strong permanent magnet or colour TV degausser might corrupt the digital recordings enough to make them unplayable. It's worth a try. To fully bulk erase the MiniDV tapes would require a videotape bulk eraser. These are more powerful than audio tape erasers and certainly did exist. Years ago I used to buy bulk-erased Beta videotapes from a shop in London called Music and Video Exchange. The shop erased the tapes before sale as they may have contained material they weren't allowed to sell. Apparently, before they started erasing tapes, a customer bought a used tape containing a dodgy porn movie and reported it to the police.

If you're selling / giving away the camcorder, your tapes will be of little or no value to anyone else, so you might as well just offer the camcorder on its own or with one over-recorded test tape just to show it working. Most people will be buying a machine to transfer their own tapes. They won't be interested in making new recordings or watching hours and hours of someone else's home videos.

Personally I don't understand the paranoia that some people have. Some years ago I was looking at a DVD/HDD recorder for sale at a radio rally. The seller told me he'd removed and destroyed the hard drive, possibly making the whole thing useless. I asked Why? The response was that there were camcorder recordings of his family on it that he didn't want anyone else to have. But I wondered if any of his family have posted pictures or videos of themselves on Facebook or other social media. People don't think there's anything wrong with that. So why worry about something on a tape or disc that's almost certainly going to be wiped and not watched by a new owner. Each to their own, I suppose.