www.makemkv.com

I, too, am not able to download 1.17.4. I did a wget https://www.makemkv.com/download/Setup_MakeMKV_v1.17.4.exe and it just keeps getting a 301 redirect to the same URL: . . . HTTP request sent, awaiting response... 301 Moved Permanently Location: https://www.makemkv.com/download/Setup_MakeMKV_v1.17...

Exact same problem. Just installed 1.7.4 and get "This application version is too old..."

Edit:
I found the key on this page:

http://www.makemkv.com/forum2/viewtopic.php?f=5&t=1053