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| Name | OGV | GIF |
| Full name | OGV - Ogg Video | GIF - CompuServe Graphics Interchange Format |
| File extension | .ogv | .gif |
| MIME type | video/ogg | image/gif |
| Developed by | Xiph.org | CompuServe |
| Type of format | Compressed video | lossless bitmap image format |
| Description | OGV file is video file that uses the Xiph.Org's open source Ogg container format; may contain video streams that use one or more different codecs, such as Theora. Theora is a free lossy video compression format. It is distributed without licensing fees. | The Graphics Interchange Format (better known by its acronym GIF) is a bitmap image format that was introduced by CompuServe in 1987 and has since come into widespread usage on the World Wide Web due to its wide support and portability. |
| Technical details | The Theora video-compression format is essentially compatible with the VP3 video-compression format, consisting of a backward-compatible superset. Theora is a superset of VP3, and VP3 streams can be converted into Theora streams without recompression. | GIF supports up to 8 bits per pixel for each image, allowing a single image to reference its own palette of up to 256 different colors chosen from the 24-bit RGB color space. GIF images are compressed using the Lempel-Ziv-Welch (LZW) lossless data compression technique to reduce the file size without degrading the visual quality. |
| Associated programs | FFmpeg, MPlayer, VLC | Apple Safari, Google Chrome, Mozilla Firefox, Internet Explorer, Adobe Photoshop, Paint Shop Pro, the GIMP, ImageMagick, IrfanView, Pixel image editor, Paint.NET. |
| Wiki | https://en.wikipedia.org/wiki/Theora | https://en.wikipedia.org/wiki/GIF |