Alright, thanks for the replies everyone. Sounds like I was overthinking it a bit. I’ll just grab a new class 10 card to be safe and not risk losing any holiday footage. Cheers for clearing that up.
I picked one up mostly because I got tired of trying to hold a file at the right angle in bad lighting. It’s not some amazing tool but it does make it a lot harder to mess up the angle, so that’s something. I think it’s fine for a beginner, it’s not like it’s a huge investment anyway.
I’ve got a dark red car and tried it on some scuffs from a shopping cart. It didn’t erase them totally but they’re way less noticeable now, especially from a few feet away. I was a little skeptical at first but it did more than I expected.