i have a lot of video clips in my computer, and quite familiar with the format and size. Still, i just realized that some of my videos are very small in size. most of my video clips are in .mpg format. two of the videos are different, and these two are the small sized ones. most of the mpg files are about 30 mb, and the two of them don't even reach 10 mb. that's a very good compression i would say. how did this happen ? the quality of the videos don't differ much btw.
and there's this one time, i downloaded a compressed file, with a video file inside (video file about hacking yahoo or something... you don't wanna know
), i downloaded the 10 mb file, or about that size (don't really remember) then when i opened, it was more than 100 mb. the extracting took quite some time, but that's worth it. saved up lots of space.
how do i do what these people do ?