I would like to introduce this site above, which is a very good site with many full-length videos of the Papal celebrations such as Masses, Vespers, and Papal Apostolic Journeys overseas and within Italy. Very recommended for all Catholics, especially those interested in the liturgy.
Sadly, it seems that recently, the website is updated very rarely, but there are still tons of videos dating from a few years ago available for download and viewing.
petercanisiusmichaeldavidkang 