YouTube Player Goes Widescreen - Pages Expand to 960 pixels

Youtube has finally added along with High Quality, Annotations and CC (Closed Captioning if Available) Comes one of the best feature that users like me have been waiting in a long time. Widescreen!

You can read on YoutubeBlog:
We're expanding the width of the page to 960 pixels to better reflect the quality of the videos you create and the screens that you use to watch them. This new, wider player is in a widescreen aspect ratio which we hope will provide you with a cleaner, more powerful viewing experience. And don't worry, your 4:3 aspect ratio videos will play just fine in this new player.