Is there a website where I can download a DVD Video ripper converter?

I would recommend you download Eztoo DVD Ripper.

With Eztoo DVD Ripper you can transfer the entire DVD film into all popular video or audio formats.

While the transfer speed is fast (up to 600% transfer speed), the image quality is also high. I've been using it for a year now, never had a problem!

For mac users, you can choose Eztoo DVD Ripper for Mac.