Wayne Paul wrote:
The IGC security record still doesn't
match the OLC computed value. So the mystery continues.

OLC does not "compute" anything. It just confirms the G record is
correct by using whatever VALI-xxxx program is appropriate for the
file uploaded.

If, as you say, there is no VALI-xxxx program available for *you* to
run against the downloaded file, then OLC does not have one either.

The basic process is as follows:

1. IGC file is downloaded from the FR to your computer.
2. You should ensure it is valid and secure (VALI-xxxx)
3. The file is uploaded to OLC
4. OLC uses a VALI-xxxx program to validate the uploaded file

If you were to download the IGC file from OLC, it should be
*identical* to the one you uploaded. If even one byte is different,
then there is a problem with file upload to OLC.

So there is no "direct from FR to OLC" method of submission and
validation. Even if some software is hiding the process, at least
steps 1, 3, and 4 take place.

I hope this helps clarify the process so you can better analyze what
is happening.

-Tom