www.makemkv.com

Good Morning,

i have one computer with 3 OS installed. I need to install the same license on all 3 OS. I can only use 1 OS at a time. Can you please confirm that this is possible with your license key.
I am going to purchase your product, but I need 1st to know that this is possible.

thanks a million in advance.

Yes, the key is per user, as it were. If you're using multiple machines, they can each have that key installed.

I've personally run multiple machines at the same time, because they only had two optical disks each.