PSXDOOM.WAD (called JIMSDOOM.WAD in the Sega Saturn port) is an IWAD containing all graphic resources used in the 
Sony PlayStation and Sega Saturn ports of Doom and Doom II. It does not contain any level or audio resources.

It was probably used by developers when creating or converting levels, but is too large to be used by the engine directly; 
instead each map is placed in its own WAD file and accompanied by MAPSPR#.IMG and MAPTEX#.IMG which contain the resources needed 
for the level.

PSXDOOM.WAD is 4,806,088 bytes in size, contains 1,731 entries, and has the following hashes: 
MD5 	d9488a08be97b1cfddeaa5c0c1f0aec6
SHA-1 	3f2ec41558998409dc95e491a66a034a76a5813b
CRC-32 	2a4b85e7 


JIMSDOOM.WAD is 6,630,448 bytes in size, contains 1,731 entries, and has the following hashes:
MD5 	9e3827abe9af90bc1ca009154d56a8fb
SHA-1 	876cdbc01fb2c47afbbeec68c510b47ccb8d4330
CRC-32 	a55dd71f 