Ok, I have searched the forums and can't seem to find an answer (could be I'm not using the right search terms). But here is the crux of the problem. I am trying to decode the datestamp portion of the filename. From what I can determine, it must be in milliseconds since a certain date. I tried seconds, but that would make the start date something like 5000 BC which would be a negative number. Can someone explain the datestamp scheme, please?