the cost for gigabyte of hard disks (3.5 SATA) is smaller than bluray one (I am referring to 50 GB disks).
What are advantages and disadvantages of using hard disk instead of read only optical disks?
I am interested in the intrinsic properties of these devices, not external (ie I do not care a 1000 GB HD can store as 20 BD so it requires smaller space).
What I can think right now: - Ease of handle: HD sensible to static electricity and magnetic fields, while optical disks can be scratched and heat can damage them. - Durability: how much time an HD can sit unused and keep its data? I have not data about durability of bluray disks, someone has? (some DVD after 5 years start giving problems in external region)