Jan 23 - Better Video Thumbnails
With the release of our new Media pages, we're now making video previews for all video files, not just the first video on a media item. We changed the way we were making those previews and the thumbnails for each file were being generated from the first frame of the video. The problem is many videos fade in from black, and the first frame was therefore black.
To fix this, we are now taking the video thumbnail from 5 seconds in, which should prevent black thumbnails.