Creating Sony Thumbnail Files (.THM extension)
author: Liquid Rhino
Alright, after seeing a lot of posts in forums and feeds on Sony-compatible THM files with no replies or links, I'd figure I'd set the record straight for the few of you out there who would like to be able to create these files, for whatever reason.
1. First off, you're gonna need some sort of image-editing program & some basic understanding of how to use whichever one you prefer.
2. Second, you'll need to know what device you're gonna be writing the file to, as there are 2 different sizes I've seen to date; one of which is a larger size and works with most Sony DV camcorders and a second, smaller size which is compatible with most Sony digital cameras, DV camcorders, as well as the PSP. Obviously the second choice is much more compatible and that's what I'll be showing you.
3. Find an appropriate image for the thumbnail you'll be creating to accompany the movie it's attached to, and open it in your image editor. You may either wish to select a frame of the movie you like best using Quicktime or any other viewer and simply using 'copy & paste' to your editor, or you may make an image from scratch, say a logo or something.
4. You'll need to open a new file, sized 160x120 (pixels; w x h). Paste the image you chose in the above step and size it accordingly with your image editor, possibly even sharpening it for added clarity. Make sure it's a flattened image and save it using JPEG format (compression 4-6 works best) with the exact same filename as the video you wish to make the thumbnail for, only instead of adding the .JPG extension, make sure you use '.THM' instead.
5. Upload movie & thumbnail as necessary to your memory card or stick.
6. Enjoy your custom thumbnails!
