Hi, any idea what the .THM file is for? I see this file accompanying every .MOV file. Thanks
mrmarks Senior Member 822 posts Likes: 11 Joined Jan 2010 More info | Oct 08, 2011 21:45 | #1 Hi, any idea what the .THM file is for? I see this file accompanying every .MOV file. Thanks
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FlyingPhotog Cream of the "Prop"  57,560 posts Likes: 178 Joined May 2007 Location: Probably Chasing Aircraft More info | Oct 08, 2011 21:51 | #2 Pretty sure that's a thumbnail file extension. Jay
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Oct 08, 2011 21:53 | #3 What's its function? I could run a .MOV file with the .THM file deleted
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ben_r_ -POTN's Three legged Support-  15,894 posts Likes: 13 Joined Nov 2007 Location: Sacramento, CA More info | Oct 09, 2011 00:26 | #4 I believe is like a EXIF sidecar file for each movie file. [Gear List | Flickr
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Oct 09, 2011 00:30 | #5 I think so. Is there any way to read the file?
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ben_r_ -POTN's Three legged Support- 15,894 posts Likes: 13 Joined Nov 2007 Location: Sacramento, CA More info | Oct 09, 2011 00:37 | #6 I think all there is to see of it is what shows up in the file browser for the video file. The two work hand in hand and as I understand it the info from the .thm file is pulled into the video file upon viewing or if nothing else just when the thumbnail image of the video file is seen. I know they arent needed as I almost always have deleted them. They may actually be JUST the JPEG image preview for the video file... [Gear List | Flickr
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LonnieMac Senior Member  297 posts Likes: 2 Joined Oct 2011 Location: Bacliff, TX More info | Keeping in mind that I am on a mac, if you take that thumbnail file and drag it to your desktop, change the extension to .jpg, you can then right click on the file and get all the .exif data. Canon 5D2, Canon T2i, 24-105 f4.0L, 17-55 f2.8, 50 f1.4. Just a old dude with a camera...
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Oct 09, 2011 18:19 | #8 Lonnie Mac wrote in post #13225257  Keeping in mind that I am on a mac, if you take that thumbnail file and drag it to your desktop, change the extension to .jpg, you can then right click on the file and get all the .exif data. Works great. Other than that, I always throw this file away. I shoot vid with the T2i. Thanks Lonnie, I tried your method in win7 and it worked as well. I can view the full exif now.
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ben_r_ -POTN's Three legged Support- 15,894 posts Likes: 13 Joined Nov 2007 Location: Sacramento, CA More info | Oct 10, 2011 15:13 | #9 Lonnie Mac wrote in post #13225257 Keeping in mind that I am on a mac, if you take that thumbnail file and drag it to your desktop, change the extension to .jpg, you can then right click on the file and get all the .exif data. Works great. Other than that, I always throw this file away. I shoot vid with the T2i. Very cool. Never thought to do that. Thanks [Gear List | Flickr
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LonnieMac Senior Member 297 posts Likes: 2 Joined Oct 2011 Location: Bacliff, TX More info | And that fellas, is about the highlight of what I know about these new fangled DSLR's! Canon 5D2, Canon T2i, 24-105 f4.0L, 17-55 f2.8, 50 f1.4. Just a old dude with a camera...
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ben_r_ -POTN's Three legged Support- 15,894 posts Likes: 13 Joined Nov 2007 Location: Sacramento, CA More info | Oct 10, 2011 15:45 | #11 Lonnie Mac wrote in post #13230702 And that fellas, is about the highlight of what I know about these new fangled DSLR's! lol dont worry, the rest will come. Just keep reading. [Gear List | Flickr
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IUnknown Senior Member 738 posts Likes: 8 Joined Jun 2007 More info | Oct 10, 2011 16:22 | #12 In canon's software you can read all the exif data. Zoom browser. I think if you delete it then you will not be able to know which lens you used for a particular clip? Fiske | Film
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ben_r_ -POTN's Three legged Support- 15,894 posts Likes: 13 Joined Nov 2007 Location: Sacramento, CA More info | Oct 10, 2011 16:46 | #13 I imagine thats how it would work as thats generall standard for sidecar file setups like this. [Gear List | Flickr
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FWIW, the .THM files are required for the camera to recognize the .MOV file. I tried to reload some files back to my CF card (5DII) w/o the sidecar, but the camera would respond with "no image data" without the .THM file. Mark
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Oct 13, 2011 19:04 | #15 Trout Bum wrote in post #13247572 FWIW, the .THM files are required for the camera to recognize the .MOV file. I tried to reload some files back to my CF card (5DII) w/o the sidecar, but the camera would respond with "no image data" without the .THM file. Thanks for the info!
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