This article is from the Final-Fantasy and other Square Soft Games FAQ, by email@example.com (Nick Zitzmann) with numerous contributions by others.
With all of the changes that Square made to the USA version (see article
4.1.4), it's as if the USA version is actually more difficult in places
than the Japanese version was. This version of Final Fantasy VII,
released in Japan, incorporates all of the changes made to the USA
version into the Japanese original. A fourth disc was also added, which
had some useful tools for playing the game.