I recently discovered this youtube channel by Kim Justice. She does quite a few video documentaries about retro games, and the like. I found these two quite interesting:
The history of US Gold was quite interesting, along with her documentary on Ocean
And of course this video about the ZX Spectrum tape wars.
I had a Commodore 64, and although I did have a 1541 disk drive first, I did later manage to get a datacasette, and on rare occasion I would pick up a Zzap64 and did quite enjoy the whole idea of a covertape. The tradition continues in the UK & EU with cover discs, which I pick up on occasion in Hong Kong.