the uncompressed raw image of a dvd
i just wanna know, what is the real image if a dvd. im not talking about .iso. i know that raw image if audio cd is .wav. but what about dvd? is it mpeg2? or something else. also, how do i compress it and what should I compress it to? i know i should compress audio to .mp3 but what about dvds. i wanna compress the dvd but lose very little quality as possibe cuz i really care about quality. its like having a 320 kbps mp3, not 192kbps but for dvd.
Also, what is a divx entension and how do i convert it to dvd format? thank you. suggest me some freeware or even some sharewares cuz i got quite some money to waste.