Unfortunately I'm not going to make it much longer. My son is 3 almost 4. I would like to leave him a Hard drive with video, letters, some of my fav music etc....Something he can have access to late teens early adulthood. I understand tech will change over the time, but long term data preservation is a more concern. I thought about cloud services but didn't want to loose everything because someone forgot to pay or etc....Is there a durable hard drive made for long term "storage".