You should only be using SSDs if you plan to keep them powered on, or, at least, powered on regularly. If you are saving content to SSDs, but only watching it sporadically (and hence, keep it powered off when not in use), then you risk the SSD losing data, and (depending on where that loss occurs), becoming unreadable. Obviously, that "problem" is not an issue for magnetic hard drives. You don't want to ever use SSDs for things like backups, e.g. something that you backup, and put in a safe place, expecting that you can come back months later and retrieve that data.You could try reformatting the whole thing but a 1TB SSD is only $60 on Amazon. So anything smaller is cheaper. This way you won't have to worry about it further and waste more of your time. How much is it worth?
You can google your way to a variety of sources that discuss the issue, but here's a discussion on an IBM site: Potential for SSD data loss after extended shutdown