If you made your own rips, you would already know the answer to this. That's what preservation is all about. Again, I'm curious as to what data is missing from these web sources that my own tools are seemingly missing as well. But if the game plays identically to the console, it's generally fine. And uninstall anything that wasn't there before.
For people like you and the gameshark community , it doesn't matter as long as it plays. But that's really a non-issue at this point. If you made your own rips, you would already know the answer to this. The rest match byte per byte. I fail to see the difference between a 2015 dump of ocarina of time and a 1998 dump. The version is important if you are doing data-specific things, like editing and such. So the scene dump is all I have to go off.
The difference is that the 1998 dump could have possibly been bad with corruption discovered after the fact as has happened many many many times over the decades. Only direct rips from confirmed sources would be good. And my systems have always been virus-free. . But yes, I can see potential problems with those in particular.
The kinds of stuff being held back is likely stuff you likely wouldn't care much about. If a website tells you that you need to install something to view a page don't just click install on any damn thing, instead go directly to Microsoft's Silverlight page, Oracle's Java, Adobe's Flash, etc page or whatever it says it needs to install it. So really, dumping your own is unnecessary most of the time. Could you point out an example? My own dumps work as well as the downloaded ones. Others directly host to the. Googling a torrent will reveal multi-trackers, with 'sponsored' type torrents which are fake.
I have uninstalled all the roms, ran adwcleaner and malwarebytes, deleted all the viruses in the process, but the pop ups keep on happening. Yes, I would agree here. I've never run into such a case. As the only difference seems to be a verification that it wasn't tampered with. There's also people who intentionally release fake torrents. I've had an account with them for years. You'd have to be an idiot to think that they would have the same standards as people dedicated to preserving gaming history.
Identical data - actually byte for byte identical - is fine. Regardless of whether I get v1. If there's an injected header or something, it's no good. I just don't see what the issue with old files is. Hell, those are the people contributing the files. Prototypes, unreleased games, cancelled games, etc. But I still hold the opinion that the only important parts of a game dump are those that can be seen when interacting with the game.
I don't think I'd ever get my hands on, say, the beta ocarina of time cartridge for myself. That's what preservation is all about. If the data on your computer is lost and you don't have backups you are doing it wrong. There's the oddball case of a difference, but generally it has glaring problems. Identical data - actually byte for byte identical - is fine.
These sites are either a fully free and never update their sets and perpetuate bad dumps or b keep updated because you pay a membership fee, making money off of the backs of people who paid good money to preserve rare games and are a direct cause of some of the holy grails being kept private. Nor am I all that interested in it. If you think the gameshark community is a group that you should trust to tell you what's good and what's not. Once I close them, they don't pop up again, until next boot up, but they do slow down my laptop significantly. As for fakes, I see plenty. Pretty much everything I was looking for is available publicly and in about 9000 different locations. But no, I legitimately don't see a difference between a scene dump and my own.