I prefer Mint, the audio/video codecs are built into the install, you don't have to install them after the fact.Install Linux. Actually, you can download a CD and reboot with it in the tray to play around with it without making any changes to your machine.
One of the easiest distributions of Linux is Kubuntu.
Try it. By the way, it's FREE. so are 99% of all applications
One of the drone-like liberal trolls here at UMB actually suggested a different Linux system -- ubuntu.
It was a little bit of a pain to download and properly install, but I finally did it correctly and I can now use it as a SEPARATE OS on this computer of mine. It takes some getting used-to. I still mostly use Windows 7, for the time being. But I am seeing serious upsides to the Linux system.
As I learn the ropes, I have to admit, I have come to the conclusion that even a drone-like liberal Board troll can offer an intelligent and useful bit of advice ONCE in a lifetime.
Here's a link: Download | Ubuntu
For Ubuntu, if you haven't already done so, here's the link for the restricted formats:
https://help.ubuntu.com/community/RestrictedFormats
Or you can load them from Software Center.