I recently tried to play for the first time a DVD on my Xbox 360 and was greeted by one of the worst miserable human invention: HDCP. Great companies and smart engineers wasted resources on something useless to me as a consumer.
The solution was easy when found. Just buy an HDMI splitter and an additional HDMI cable and you are set.
Now you should be able to play DVDs and Netflix without “Secure HDCP link not found” through.
Some of you might have sound for games but not for DVDs or Netflix. If it is the case, make sure that you go to “Display Settings” and then enable “Display Discovery”. The HDMI splitter also solves that issue.