What are VIDEO_TS and AUDIO_TS folders in DVD?

Srinivas N October 31, 2012
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I usually burn my content on DVDs using Nero Burn Lite 10 using data burning feature. But when I explore any movie DVD, it shows VIDEO_TS, AUDIO_TS, IFO, BUP, VTS and all such things.

What are those things? What is the use of them and how to create such format DVDs? Can we write more than once on a DVD? I mean if any space is still left?

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  1. kumar raja
    November 19, 2012 at 7:29 am

    Vob files are video files
    IFO files are information files
    and i am not sure about the folders

  2. Usman Mubashir
    November 2, 2012 at 6:23 pm

    the files are data files that create the dvd interface menu when you run the movie in pc or a player.

    you need to creat disks as multisectioned to be able to write after initial burning

  3. Erlis Dhima
    November 1, 2012 at 9:06 pm

    To make it short, IFO - contains information, BUP - it's for back-up, VOB - are the video files (its the DVD format for the video... usually 1 GB per file, but it depends!)
    The two main folders are so that they can be read on a DVD player.
    To create a DVD video (like those you have seen, with AUDIO_TS & VIDEO_TS), you have to open nero video, under create, go to create a DVD-Video, and when it's opened, add all the video files under VIDEO_TS folder..
    To make the video playable under DVD Players, you have to use a dvd creating tool, that converts your video into a DVD format.. (Before doing that I suggest muxing your video into .vob format, so you will not have lose in quality!)

  4. Dave Rimmer
    November 1, 2012 at 3:16 pm

    This is just the file format of a dvd. If you other file types, avi, xvid etc and you want to burn them to a dvd then they need to re re-encoded into this format so that your dvd burning software can understand it and then burn it to dvd.

  5. Gurjot Singh
    November 1, 2012 at 12:18 pm

    you just open video folder to play your video why wate your time to go into deep !!!

  6. ha14
    November 1, 2012 at 9:05 am

    IFO files contain navigational information ( Video Manager or information system) and BUP file contains a backup of the IFO files, in case they become unreadable.
    VOB file is the one that contains the video stream, different audio channels and subtitles of a video title. VTS (video titles for sets) containing the video titles one or many video title sets.

    without the presence of VOB (Video Object Block) files that contain video and audio, you cannot read IFO and BUP (Backup, serve as backup for IFO).

    IFO, BUP and VOB files in the VIDEO_TS folder.

    • Douglas Mutay
      November 1, 2012 at 9:25 am

      Thumb up!

    • Rama moorthy
      November 11, 2012 at 6:35 pm


      and also the Video_ts and audio_ts is used by DVD players for reading I think...

  7. susendeep dutta
    November 1, 2012 at 8:05 am
  8. Naveen Kumar
    November 1, 2012 at 4:03 am

    here is the answer for your question

  9. Anonymous
    November 1, 2012 at 12:15 am

    See this for information about the directory and file structure of a video DVD.To create a disc like this, you need to use an authoring program such as Nero Vision or Digiarty's DVD Author (free).A DVD+R or DVD-R can only be written to a single time. A DVD+RW or DVD-RW can be rewritten multiple times. If you are putting video on the disc and you want it to work in a standard DVD player, it must be finalized (no more files can be written to it even if there is still space available on the disc for RW discs). If you are putting data files on a RW disc, space is still available on the disc and it has not been finalized, you can still add more data to the disc but come computers may not be able to properly read the non-finalized disc.

  10. Yiz Borol
    October 31, 2012 at 11:28 pm

    For the questions concerning VIDEO_TS and such I direct you to wikipedia.

    In general you cannot change a laser disc (be it CD DVD or BLURAY) once it's been written to.

    There ARE however special CD+WR DVD+WR and BLURAY+RE discs that can be written on multiple times (though there may be a limit but it's fairly high)

    To find such discs you can search for rewritable discs (DVD, CD, Bluray)

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