There is an option to 'upgrade' your video to 1080p on Vimeo, but I am very curious what effect switching 'HD' on has if you don't upgrade your video. My understanding is that the HD switch always changed the resolution to 1080p. Am I wrong?Also, is it necessary to upload a 1080p source video for Vimeo to 'upgrade' your video, or does Vimeo resample your 720p video up to 1080p?A lot of confusion as to exactly what is happening behind the scenes when you upload to Vimeo or YouTube.
Vimeo 'Upgrade this video' option
video;vimeo