Glad you "tried the obvious avenues" prior to posting your question.
You wrote that you were trying to identify an asset's codec.
Editing with mpeg2, mt2, mpeg4 etc is rare at best, so I imagine most readers assumed you were either dealing with a MOV or AVI container.
Next time if you are more specific in your post it will help us avoid posting obvious answers.
Ben Unguren
Motion Graphics & Editing
http://www.mostlydocumentary.com