My brother recently recovered a metric a$$load of old home videos we had unviewed on Betamax, and had them converted to MP4s (after conversion, they're about 62 GB). These are videos close to 25 years old, and having lost my father about 20 years ago, it was wonderful seeing him not only as a static figure on pictures, but as a moving person, as well as reviving old memories of my siblings.
The only regret I have is that being the most technologically adept child in my family at the time, I'm almost always the one holding the camera, and therefore I'm not seen as much. I never was much for being seen when I was young, but I would have liked to show my daughter some videos of me as a youngster. She recognizes her aunt and uncles in the videos, and laughs at our antics from a forgone age.