Combine several VOB files into one

Star Trek

First of all… What is a VOB file and why should you care? Right?

VOB is the default file type for standard movie DVDs. More detailed information here at Wikipedia. If you want to back-up a DVD onto your computer, you will immediately come in contact with VOB files.

So my son gets a PSP (Play Station Portable) for Christmas and right away wants to put movies on it to watch by himself. So I say “Fine, we have  a bunch of movies here that I can transfer to the PSP.”  I grab a DVD off the shelf and stick it in the computer. Then I grab one of my handy dandy conversion tools and get to work.

  • DVDDecrypter (Download Here)
    • I first tried DVDDecrypter because this program simply transfers the raw DVD files (VOBs) onto the computer without compressing them or changing them in any way.  But that didn’t work for this particular DVD. 
  • DVD Shrink (Download Here)
    • Then I try DVDShrink because it does a good job transferring DVDs also. It worked. The whole DVD, all the VOB files, were transferred successfully to the hard drive.  But OOPS, I forgot to check the little box that says “Make one big huge VOB file from the DVD”. So instead the movie was chopped into 5 pieces, each one with it’s own VOB file.
      • DVDShrink is usually used to compress a full movie from a double layer disc (up to 8gb) so it will fit  onto a regular DVD (4.7 gb). And it does this very well. But in my case I didn’t need compression, just file transfer.
  • AVS File Converters (Download here)
    • I almost always use AVS File Converter to convert the VOBs into other formats, like AVI, MP4, MPG, MOV, FLV, etc.  It does a great job and has a very easy to use interface.  Problem is, if I try to convert the DVD files as they are, I’ll have 5 little movies. That won’t do. I need to combine them into one big VOB.

Come to find out… WIndows has a built-in VOB combiner. And it’s easy to use.   Just follow these instructions.

  1. Go to: Start > Run, Then type Cmd (this opens a DOS window)
  2. Type: cd \Videofiles(“Videofiles” being the folder where decrypter saved your VOB files. you’ll need to navigate to the location YOUR files are located.)
  3. Then type: copy /b vts_01_1.vob + vts_01_2.vob + vts_01_3.vob + vts_01_4.vob new.vob
    1. Be sure to include each VOB file you’re wanting to combine and in the order you want them to play.
    2. The very last file in the sequence (in this case “new.vob”) is the name of the combined file you want to create.
  4. new.vob is now 1 VOB file of the movie.

I then used AVS to easily convert to a PSP compliant format and copied it to the memory stick that my son uses. 

This whole process ended up taking about 2 hours. But I think I could knock a bunch of time off that now that I know what I’m doing.  For example, in the process I found out that AVS will convert the entire movie directly from the DVD. So, assuming there wasn’t any DVD encryption to deal with, that right there could have saved a bunch of steps.  In my case the DVD WAS encrypted, so I would have needed DVDShrink anyway.

Hope this helps SOMEBODY out there.  If you have any other solutions for this problem, please comment below.

Inspiration for this post found here:

  • Liam

    You don’t need to convert later, because if you use
    copy /b vts_01_1.vob + vts_01_2.vob + vts_01_3.vob + vts_01_4.vob new.avi
    and change the file extention to avi or what ever format you want.

    PS. 98% of all commersial DVDs ARE encrypted, and I’ve found that if the DVD has multiple languages for the Feature Movie you can use DVD shrink to Reauthor the DVD with only english or your prefered language, if you don’t do this the combined file with have all of the avalable audio tracks playing at the same time

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  • Jelly Tons

    The system cannot find the path specified.

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  • martijn

    Thanks for the great advice! I’ve used it several times allready and it works just fine!! (allso nice to use the DOSpromt again for a long long time!


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  • johnsmith

    Right Click the folder that the files are in and select Properties, Than goto Sharing, under sharing, youll find Network Path, type in as an example to where i put my files: \Users\yourname\videos\folderthefilesarein This worked for me.

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  • Jannet Delrosario

    Invaluable analysis . Apropos , if you is interested in merging of PDF files , my husband encountered a service here ““.

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