I'm finishing up season eight. Yay! Wanting to get nine and ten. I'm so confused!

For a long time, I thought they weren't even out, then realized it's Blu-Ray that's the issue. I don't care about that. But now that I'm looking, I'm finding a lot of scams and reports that the product that was sold won't play in the U.S., for example. One sale had a comment that it was a "home burner" set. I have no idea what that is. I see "complete series" showing ten pics of DVD cases, then comments that it's only the first eight seasons.

Use-ta-be Amazon cleaned up scam sellers. But that was a long, long time ago. I don't want to be a test case for one of those guys.

I just want to watch seasons nine and ten without having to buy a Netflix subscription. Or getting ripped off. Can someone point me in the right direction?