I could have sworn disc one was only a few hours long though.
If you know what you're doing, it very well could be. For practically all of Disc 1, you can get through it without understanding the battle system, and if you do understand the battle system you can crush everything in your path with almost no effort. By Disc 2 though, this same style of play becomes a lot harder to maintain, and even if you do understand the battle system - at least in my experience, it eventually becomes an almost mindless repetition of the same basic strategy (which, IIRC, is basically "Stock and Boost up, apply elemental weaknesses, air/down the enemy and unleash everything you have on it), however, as the game goes on, you find you have to repeat it multiple times in a single encounter. To the point where I basically had the same strategy for every encounter, and it made encounters in the final dungeon "harder" than the final boss, because I was pretty much doing the same thing in both battles, only you can have more enemies in normal encounters.
--
xp1337: Don't you wish there was a spell-checker that told you when you a word out?
GotD (219/384) Melee v FFX