[PurpleRamen]

Regular hard drives are storing data through magnetic voodoo. Which means they will lose charge and thus data over time. And time here is measured in decades, not centuries. In fact, regular hard drives are even worse than SSD. Though, it all depends on the specific devices, how you store and handle them. There are also dedicated archive-HDDs, which are supposed to hold a bit longer than normal HDDs, but even they only promise decades. In general, for Anything longer than 50 years, don't even think about HDDs and SSDs.