The (standard file name: scph5502.bin ) is widely considered a "gold standard" BIOS for PlayStation 1 emulation due to its balance of stability and performance. Released in early 1997, it was the primary firmware for the European SCPH-5502 and SCPH-5552 hardware revisions. Technical Overview
The Definitive Guide to the PlayStation SCPH-5502 V3.0 Europe BIOS (scph5502.bin) playstation scph5502 v30 europe bios scph5502bin exclusive
Therefore, the is the official European/PAL model of the PlayStation, released in late 1996/early 1997. SCPH-5502 v3