Some years ago I used to create a link to insert in a pdf which would run a segment of a youtube video as follows: http://www.youtube.com/v/[video_id]&start=[start_at_second]&end=[end_at_second]&version=3
now with the move to HTML5 it seems the new format should be: https://www.youtube.com/embed/watch?v=IPQQ8yWpH9c&start=10&end=20&autoplay=0
However I am unable to make either workl
In URL 1 you are forgetting the ? for the query string. It should be :
http://www.youtube.com/v/[video_id]?start=[start_at_second]&end=[end_at_second]&version=3
Notice the ? before start (instead of the & you had).
The second one you don't need the watch?v=, it should be:
https://www.youtube.com/embed/IPQQ8yWpH9c?start=10&end=20&autoplay=0