can a magnet delete memory of dvr



You can erase the drive with magnet('s), however the magnet('s) must be strong enough to do so. Usually, using the program listed above will do all of the work for you without buying expensive magnets. Just make sure it overwrites many times with random blocks to achieve what you are wanting, which is an un-readable drive. As an added precaution you can also use a drill to go into the platters as well.