Some Vevo videos have missing days.  The reason for this is that there is a limit of 32 videos on each page of a channel, and we previously weren’t crawling every page on a channel for data.  The addition of new videos can push older ones onto new pages, so we would have stopped receiving data for videos that got pushed back.  This problem has been rectified, but we are unable to fill in the historic data at this time.

Posted March 8, 2011