What is IFO mode?

[supplier]

Hi,
when do i choose IFO mode compare to File in DVDDecrypter?

Thanks

[jggimi]

In http://www.doom9.org/dvddec.htm Doom9 describes the three modes of DVD Decrypter from an operational point of view. Here's my interpretation of the three modes: File mode provides a file by file copy of the DVD's structure -- VOB, IFO, and BUP files.

ISO mode produces a "DVD image" file of the bits on the disc, similar to the "CD image" files used when copying CDs. It's useful for copying DVDs when the source is small enough to fit on a burnable DVD.

IFO mode reads the IFO "information files" -- allowing you to extract a set of VOBS and an associated IFO that contain a single angle of a single program chain. In addition, one can extract individual streams such as soundtracks or subtitles, or one can limit the extraction to a single chapter, or even a single cell.For more on DVD files and structures, see http://www.doom9.org/dvd-structure.htm which is part of The Basics pages at www.doom9.org.