OK. What are these games? I looked around and found that Origins is 1 and 2, and Anthology is 5 and 6, right? So, is it something weird or is it literally "Here's a simple way to play some of the original games. These are exactly the same as the originals. We haven't buggered around and changed everything to make completely different games"?

I'm just curious, because I plan on getting all FFs playable on the PS2, and I don't wanna waste my time if these games aren't part of the actual series.

Also, 3 and 4? What I gotta do to play these games?