Wednesday, November 26, 2008

What's IFO?

IFO is a DVD InFOrmation file that stores information about Chapters, Subtitles and Audio Tracks.

IFO information is a Video Title Set (VTS).

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.

IFO Files give the player important navigational information, like where a chapter starts, where a certain audio or subtitle stream is located, etc. This is the reason why it's only possible to rip certain parts of a movie (like a chapter) with a ripper which can read this files.

Related Articles:
What's DVD?
How to rip/convert dvd .IFO on mac!

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