user3450: For me personally seems youtube videos crisper in 1080 or "original size".
Vimeo seems a little fuzzy when HD is on.
What technology does Youtube use, and why is it apparently better? What is the difference between the two technologies?

user3465: They both are powered by flash, which can read most file types, so I think it really has to do with the way and speed it is buffered.

3450: <p>For me personally seems youtube videos crisper in 1080 or "original size".</p>

<p>Vimeo seems a little fuzzy when HD is on.</p>

<p>What technology does Youtube use, and why is it apparently better? What is the difference between the two technologies?</p>
 3465: <p>They both are powered by flash, which can read most file types, so I think it really has to do with the way and speed it is buffered.</p>
