All popular video sites hold for each clip more than one video files with different qualities (Youtube is the champion here - up to 31 qualities per clip). 3D Youtube Downloader fetches complete list of available qualities with detailed info and depending of current work mode automatically selects appropriate file to download or gives you an opportunity to do this by yourself.
What's new in this version:
- additional media qualities and Opus codec support for Youtube
- support for tedxtalks.ted.com