Is there anyone here who can tell how to create 720p HD clips with 8 hours of some images and music (like a slideshow that loops) and then manage to upload it to YouTube. Here is an example: The file must be really big so that makes it really hard to both upload it and then for YouTube to process it. Do they use a video software that includes the option to upload it to YouTube or is it some other secret to handle the upload. They have to use some really fast software to render the video. The clip includes about 6 minutes of images and music that loops over and over again until it reach 8 hours.