HTML 5 <video> tag vs Flash video. What are the pros and cons?

Question

IMPORTANT UPDATE

This question was made over 9 years ago. It made sense then, it doesn\'t make it now. Flash is hard on its way out; sup

Answer 1

One Con is the fact that the current html 5 spec has not been able to agree on a single codec due to browser vendor dissagreement.

From the article below:

"After an inordinate amount of discussions, both in public and privately, on the situation regarding codecs for and in HTML 5, I have reluctantly come to the conclusion that there is no suitable codec that all vendors are willing to implement and ship"

Browser vendor squabble

Ultimately, even if you do use the video tag, your video codec may not be supported in all browsers, even if they do support the tag.

As others have mentioned, this may not pose any real issue, but I believe having to make multiple versions of the same file available certainly negative.