hd-dvd-ripper.net is yet another domain from Wondershare that is promoted by spam. It promotes low quality products from iSkysoft and Wondershare.

Wondershare spammers are so impudent, that they don't even hide their IP addresses:
The IP Address is: 174.133.27.138. The host name is: mail.wondershare.com.

Do not buy anything from Wondershare or iSkysoft! Do not support spammers! And do not put your computer and private information at risk.