Exif Data - DSLR Video
From Help Wiki
Exif (Exchangeable image file format) is a way of string information from the camera in a photo file. When recording video the Canon DSLR's record the exif data in a .thm file. Every video on the camera will have a corresponding .thm file. The .thm files are really .jpg files.
Reading the Exif data
- Make a copy of the .thm file.
- Change the extension from.thm to .jpg. A warning dialog will appear. Click Use.jpg.
- Open the file in Preview.
- Go to Tools > Show Inspector (Command-I).