I usually have music playing or an audiobook going or have soemthing I'm watching while working on the computer.
I use a docked laptop. When a video autocatically starts on a web page, it takes over the main monitor full screen. Every time I reset Microsoft media player not to do that, it does it again after the next reboot.
Please people, consider leaving a control in your page coding so a person can decide whether to listen/view or not.
The hero was just about to find out who the villain was in my audiobook and I get rap blaring at me out of the computer.
Sorry, but unless I'm feeling very very very patient, if music or video automatically plays on your page it will be closed immediately.
On a rant...
Steven