www.makemkv.com

If people would include the file name being sent, we could tell if the files were the same. But, without that, we have to assume that each file is different. The 4 characters at the end say something about the content, but no one seems to thing they're important. Got it. I didn't know that. I'll do...

I wonder if it's advantageous to them to receive multiple dumps. Are all discs the same key?

Same