(the smaller, redesigned white model). It is a late-revision North American BIOS (v4.5) released around 2000. scph7001.bin

The following report examines the primary PlayStation 1 (PS1) Go to product viewer dialog for this item.

: This is widely considered the "best" BIOS for modern emulation. It was originally extracted from PSP firmware 6.60 and is region-free

Here is the story behind the code.