The vers.req file is used to retrieve firmware information from the camera. After holding down FUNCSET and then pressing trash&timer: P-ID:31C4 NT D <-- (US NTSC Version) Firmware Ver GM1.00C NoError Jan 9 2009 14:57:24 Second press of trash&timer (while still holding FUNCSET) reveals: Adj Ver. 006.008 Third press of trash&timer (while still holding FUNCSET) brings up this: Adj Ver. 006.008 IS Firm Ver. 2.07 IS Param Ver. 2.09 After holding down FUNCSET then pressing trash&timer four times with vers.req file: Driver info: 0x00000000