Thanks Greg. The ValiCam2 program reports:

F:\i:Valicam2.exe 649C40R1.IGC
ValiCam for the 302 Version 1.0.0

Checking File:649C40R1.IGC ...

Log Data Integrity OK
Signature Data Integrity OK
Security Fail

....

I wonder what would cause a 302's log file to fail? Could this have
been different if I'd used Cambridge's utility to download it instead
of ConnectMe?

-ted