Why were there never any 2 or more CD games?

[Naniyue]

I know that switching a disc is possible, at least in that CD Battle game, so why was this never done?

[Necromancer]

Cost of the second pressing and to make enough assets to actually need the second disc.  Other than composing a bunch of Redbook tracks, you'd have quite the task making hundreds of megabytes of game code and graphics, ending up with a ridiculously long game and lots of loading at only 2 megabits at a time.

[Naniyue]

So again it was a matter of technological and monetary limits.  I wonder what such a game would be like now?

[majors]

Also why bundle two or more discs when you can sell them separately for max profits? Look at R-Type on PCE as an example(even though HuCards).

Tho as a counterpoint, Y's Book I and II where on one disc, but two games. And let's not forget Neo Nectaris which included the first Nectaris game.