I'm sure others do too, and I can't find info on the Net. Go figger. Usually you can find everything, but not this time.
There's a wealth of different file formats. There's MPGS, including MPG 1 in many flavors (CD, and VHS are two that I know of). There's MPeg 2 and MPeg 4, and those come in flavors too. Then there's AVIs, which seem to be a generic term. Then there's VCD, DIV, HD something or other, and lotsa different types. Okay, fine! What are these? When do you use one over another? Whats the difference between these, especially the MPGs?
Get the picture (pun intended)? Where's a treatis on all this stuff? I'm lost! I have no clue of when to use what format, and why. Please help me and others who are total noobs.