I aws looking for an answer to the question "How do I combine VOB files" when I came across this old thread. QUOTE: "i assume that when you say "all the VOB files", you are talking about combining the .VOB files of a DVD. this can be done with DVD Decrypter. Open DVD Decrypter, and go to Tools > Settings > IFO Mode tab. in the drop down box for "File Splitting" choose "None" and click OK. back at the main window, go to Mode > IFO, then click decrypt. the result is one large .vob hope this helps..." Due to the silly Forum rules I was not able to add to this post some I created this one. My reply goes something like this. "Actually this information is incorrect. In order to combine file is DVD Decrypter you need to select the [File] tab and in the option of "File Splitting" choose "None" and click OK." Cheers, Adrian.