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IFO (stands for InFOrmation) is a type of DVD file that stores information about chapters, subtitles and audio tracks.

IFO information is a video title set (VTS). When the disc is accessed with a DVD-ROM, at least two directories are present: AUDIO_TS (audio title set) and VIDEO_TS (video title set).[1]

An IFO file is one of three types of files that are used on DVDs. It contains important navigational information, such as where a video chapter begins, and where audio and subtitle streams exist within the movie (VOB) file. IFO files are not encrypted.

Other DVD file types include VOB and BUP.


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