I need answers to a few questions REALY FASTLY...

[Pilouna]

hi, please answer to this today or tomorrow, after that it's too late!
i don't find informations about a few details, for my presentation, i already told you about it:

1. in the pdf document "what's_blu-ray", on page 2, they talk about "light spot (area size)" that goes from 100% to 19%, WHAT IS IT????

2. the reading system, like for CD and DVD, that has the laser and reads the information, does it use a "prisme" or a "mirror"??? and is there a difference between "prisme" and "mirror" or is it the same?

3. mBps, does it mean "mega bytes per second"?

4. what do you know about "numerical aperture"? what is it?

5. can you explain about "pit lenght, track pitch, mark lenght"? IS pit lenght the same that mark lenght?

I ALREADY TELL YOU A BIG BIG THANK YOU, I HOPE I GET THE ANSWER TODAY OR TOMORROW, THANK YOU!!!!!!!!!!!!!!!

i'll put my "hardware" presentation on the web afterwards if you are interrested... HELP ME :P