Microsoft had to bury (kill) autorun and autoplay when bad folk began to use that as a way to install bad things.
Nothing busted. It's working as it should.
When I put a CD/DVD into my laptop, it doesn't play automatically. I find I have to go to computer, then E: Drive and open the files that way by selecting any .exe files by pot luck to run/install software. I have checked the media settings and they are set correctly. I have updated my drivers since upgrading from Vista to Windows 7. The laptop is a Dell Inspiron 1545.