...I found this, Saint Antoine Daniel Gregorian Chant Ordinaries. It's a simply brilliant site. Click on the 'Ordinaries' header and it takes you to a list of Masses, with a list of options, here's what you get if you click on YouTube, for the Mass I Gloria:
Guess what I'll be doing this evening?
Oh, double click on the video to bring it up in a full sized window :)