This link is to a sample of the Metropolitan Opera's HD player. It's not, unfortunately, embeddable or I'd do so but please follow the link. It is Elīna Garanča singing the "Habanera" from "Carmen" and it is magnificent. Expand it to full screen to watch. The video is absolutely crisp and stunningly clear and you get to hear the superb Ms. Garanča singing one of the most famous, justly so, songs in opera.
Once again I call your attention to her acting. The stage business with the washed garment, the "washing" of the legs. And look at her eyes when she bites through the stem of the flower - there is a flash of fire that shows the bewitching gypsy for all she is.
The Met offers a free trial week of its HD player and when I have the chance to watch a lot, I'm going to take them up on it. They want a little too much cash for access to the player generally but look at that lush HD video and tell me that it's not at least worth considering. But watch the free clip please.