Huh? How could all of the install stuff be on one CD. It would ask you for the second. Unless you using a pirated version and it was corrupt. BTW, the files would gather up to be over 50 MBS. And how do you expect to get them in JA?
Yes, it's quite odd... You might want to get yourself a original copy of the game, because normally the installation asks for both
CDs, not just one of them.