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| Name | VOB | MKV |
| Full name | VOB - Video Object | MKV - Matroska |
| File extension | .vob | .mkv, .mk3d, .mka, .mks |
| MIME type | video/dvd, video/x-ms-vob | video/x-matroska, audio/x-matroska |
| Developed by | DVD Forum | www.matroska.org |
| Type of format | Media container | Container format |
| Description | VOB (Video Object) is the container format in DVD-Video media. VOB can contain digital video, digital audio, subtitles, DVD menus and navigation contents multiplexed together into a stream form. Files in VOB format may be encrypted. | The Matroska Multimedia Container is an open standard free container format, a file format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. It is intended to serve as a universal format for storing common multimedia content, like movies or TV shows. |
| Technical details | Files in VOB format have a .vob filename extension and are typically stored in the VIDEO_TS directory at the root of a DVD. The VOB format is based on the MPEG program stream format, but with additional limitations and specifications in the private streams. VOB files may be accompanied with IFO and BUP files. These files respectively have .ifo and .bup filename extensions. | Matroska is similar in concept to other containers like AVI, MP4, or Advanced Systems Format (ASF), but is entirely open in specification, with implementations consisting mostly of open source software. |
| Associated programs | MPlayer, VLC media player, GOM player, Media Player Classic | VLC Media Player |
| Wiki | https://en.wikipedia.org/wiki/VOB | https://en.wikipedia.org/wiki/Matroska |