DISQUS

Haven · 2 years ago

It's definitely the exact center frame of the video (at least for .avi files). I've uploaded a number of videos to YouTube, and each thumbnail is the frame at the exact middle point of the video, including the milliseconds. So if you upload a 3-minute long video (3:00:00), the thumbnail will be the frame that is at exactly 1:30:00. If you upload a 2:48:66 video, then the thumbnail will be the frame at 1:24:33. If you want to prove it to yourself, open a few of your uploaded videos in an editing program (e.g. Windows Movie Maker). Look at the video length, then divide it in half. The frame at that exact midpoint will be the thumbnail.

cinetech · 2 years ago

I've added more info in my website:

How To Set Up The Right Poster Frame In YouTube
http://www.squidoo.com/youtubeframe/

Don · 1 year ago

Sometimes when I do a search in Google I see links for videos and sometimes the video thumbnail is there and sometimes it isn't. Do you know what type of program or software you need to make your thumbnail display like that?