Welcome to the forum. :flower:
I'm not quite sure what you mean by scratches. Do you have a camera which you could take pictures with and upload?
In any event, if the scratches are not there before you burn, then it's the fault of your writer, and it would be unethical to return them to Amazon since the fault is on your end. There is no difference between the MIT and MIUAE Verbatim media. It's all essentially the same. Plus, if your drive is causing the scratches, you're going to have the same problem with any other media you use.
From my perspective, your drive is probably just filthy on the inside, and needs to be cleaned. The inner plastic ring that you describe doesn't sound like an area where the drive burns, but is rather the area where the drive grabs the discs and holds them. If that's the case, then it's your drive that is doing that to the discs, and only opening it up and cleaning it will fix it.