  1001, 7001, 7502,    .    

DTLH3000 -  ROM  2.2 12/04/95 USA.     SCPH1001
DTLH3002 - v2.2 (1995-12-04) 
SCPH101 - PS One v.4.5 05/25/00 
SCPH1000 - 09-22-1994 SCPH1000 Japan
SCPH1001 -  ROM  2.2 12/04/95 USA.     DTLH3000
SCPH1002 -  ROM  2.2 05/10/95 Europe.     DTLH3002
SCPH5000 -  ROM  2.2 12/04/95 Japan
SCPH5000a -       ""
SCPH5500 -  ROM  3.0 09/09/96 Japan
SCPH5502 -  ROM  3.0 01/06/97 Europe
SCPH7000 -  ROM  4.0 08/18/97 Japan
SCPH7001 -  ROM  4.1 12/16/97 USA
SCPH7003 -  ROM  3.0 11/18/96 USA
SCPH7502 -  ROM  4.1 12/16/97 Europe