YouTube video out is limited.

In the video on YouTube that is longer and more often. Made to be broken into so many YouTube now be gradually extended the length of the video limit from 10 to 15 minutes in the middle of last year and now YouTube is no longer defined and video offline.
Users who have chosen to comply with some of the Guideline and have no history of waste before it can upload videos longer than 15 minutes, then start today. Who wants to know whether this was right or not, click Upload to YouTube button will appear if the right messages offline.

 Source: Blognone, YouTube Blog.