Because in the 1990s, Latin America primarily imported US hardware (NTSC). The official Spanish PAL version (SLES-00497) runs slower (50Hz) and has black borders. The US runs at full 60Hz with full-screen resolution. For a Spanish-speaking gamer looking for the best performance, "La Version del Director de Resident Evil" is technically the SLUS-00551 disc.
While the core story—Chris Redfield and Jill Valentine investigating the Spencer Mansion—remains the same, SLUS-00551 introduced significant changes to the gameplay structure compared to the original release (SLUS-00022).
Emotionally? No. The 2002 GameCube remake (and its 2015 HD remaster) surpasses the PS1 original in every technical and atmospheric way. However, historically?
It is important to note that is not the "Dual Shock Ver." (Serial: SLUS-00747).
Unlike the standard 1996 release, the Director's Cut includes three distinct gameplay modes accessible from the main menu: