Life of DVD±Rs and HDs

I've been thinking of archiving al my music compact discs (around 350-400) on DVD+R discs in case I lose them in a fire or similar disaster. But then I'd have to keep these backups somewhere else too. My music collection cost too much and is too precious to me to have it lost for all time. I think I'd kill myself if that were to happen and not have made any backups...

Not dvd-related but I have CD-R's of suspicious brands (as in low-quality, I kind of bought out of ignorance) dating from 1999 that still play as good now as in those days. High quality discs must last even longer then.

And archiving on hard disc seems to be the better solution, but must be handled with care at all times, and you could lose all your data at once if the drive crashes.

Jam it back in, in the dark.

I doubt the production studios would utilize the same brands we use for burning, but I could be wrong. And DVDs you find in the shops are not burnt in the way we do, the movies are pressed onto disc in huge quantities and the machines for manufacturing are a bit better and more powerful I think than the writers for home use. They can even produce invisible high quality layers on the surface of the discs so they wouldn't suffer as much from bad handling, scratches and so on. Rental movies are made with extra layers for enhanced durability.

And DVD going bad, well years ago I've a lot of talk about DVD Rot, where some movies would just become unreadable and you could use the disc as a coaster. But that were just flaws of the DVD standard in the beginning years which I gather have been resolved by now.

How ya doing, buddy?