There should also be a database file in the same vicinity, or on your local drive... The .dat files are only the raw data, whereas the database links cameras to time to .dat files. I do stuff locally, and no problems there.
Seems something is missing? I am trying to find out what is local and what is remote, but ECF is probably the best source for these things, and he will respond in any case... Me, I am just an active fan.