I'm not referring to media but to the DVD reader / writer drive
about the media I like long term storage
storage 25, 50 or more years
I'm not referring to media but to the DVD reader / writer driveThe two are closely linked. I suspect that in 50 years, the trickiest part might actually be finding a drive to read the discs. The discs themselves will likely be fine, provided they're stored properly.
As for how long the discs last, I still have CD-Rs from the mid 90s which are perfectly readable. So CDs are good for 25 years at least, provided you use quality media. Writable DVDs haven't been around that long, so nobody knows quite how they stack up long term.
For archiving with optical discs, you want phase change media. Which means either blu-rays (NOT the LTH variety) or DVD-RAM (no, not a typo) but they litterally don't make those anymore. Which is a damn shame, because they're essentially the optical equivalent of a harddrive.
I have some M-DISC Verbatim spinddle DVD discs but I wanted to buy more drives and I can't find them on any websiteIt doesn't matter which you use, internal or external, though long term USB should continue to be accessible on more systems going forward. SATA will slowly get phased out from mainstream motherboards, though how long that takes will itself depend on how long it takes the capacity of solid state drives to catch up with that of mechanical hard drives (i.e. it ain't happening any time really soon, though). To cover yourself, you can also get an external SATA to USB enclosure for optical drives.
Optical drives themselves are now in the process of slowly falling out of mainstream, so if you are investing in the format for long term storage you'd want to make sure you invest in both a primary drive and at least a new boxed spare while they are semi-affordable.
The best optical storage you can get for long term storage is a drive that supports M-Disc as the media literally lasts forever and, once written, can be read on any comparable non M-disc optical drive. The M-Disc BDXL format supports storage of up to 100GB per disc, so it can hold a decent amount of important data.
The only downside is that the original maker of the M-disc media went bankrupt a few years ago. The media is expensive, and is slowly disappearing from the market (I've seen Verbatim M-disc media, but most sellers don't keep a lot on hand).
these cases for optical drive are very expensive for me, bluray drive is also very expensive so i bought DVD drives and media but i can´t find any more mdisc dvdWith optical discs, you are almost certainly stuck with current formats - there likely won't be new ones because the technology is being phased out by streaming services. Only way this will change is if they make a breakthrough on media storage density (and I don't know if anyone is even studying it anymore after M-Disc).
If you are worried, pick up an external SATA to USB enclosure for optical drives. I bought a NexStar enclosure about 4-5 years ago that works absolutely great for optical drives (though, granted, I haven't looked closely at the newer models, so I don't know about the quality).
At some point, keep in mind there will be new archival technologies and you'll eventually want to transition your backups to them. If your Internet connection is fast enough for cloud storage, that is a good place to store encrypted intermediate backups.
As far as M-Disc compatible Bluray burners go, here are a few I found with a quick search (keep in mind some don't include software):
https://www.newegg.com/lg-wh16ns40-internal-blu-ray-burner/p/N82E16827136269
https://www.newegg.com/pioneer-bdr-2212-internal-blu-ray-burner/p/N82E16827129092
https://www.newegg.com/asus-bw-16d1ht-internal-blu-ray-burner/p/N82E16827135306
https://www.newegg.com/pioneer-bdr-212dbk-internal-blu-ray-burner/p/N82E16827129091
And, BTW, a laptop Bluray burner with M-Disc support will work just fine with a desktop (either with an external USB enclosure or via a bay adapter).
Internal 5.25" to slim optical drive adapter:
these cases for optical drive are very expensive for me, bluray drive is also very expensive so i bought DVD drives and media but i can´t find any more mdisc dvd
Here's a list of compatible drives . I've only used Verbatim and Millenniata media.