Nope. The game comes with a hard drive that you install in your PS2 (you will have to buy a new PS2 if you have one of the newer thin ones, i think). The only discs you actually put in the PS2 are to install the game and install the expansions.
The original FFXI discs, as well as the expansions, are all silverback. If you ever have to reinstall, you'll be fine. Come to think of it, I haven't seen a blueback disc in a long time.