Resyncing a dvd .iso

Hey guys,
A friend sent me an .iso to burn and I noticed that some of the audio is not synced up wit the video on two of the videos. The .iso when burned is like a dvd, with menus and everything. So is there a program or something that can help me get into the .iso and change the syncing for those two parts only (so I don't end up messing up the entire thing)?

Just wondering.
thanks in advance.

 

Unfortunately, working with VOB files is not an easy thing. They aren't like AVI files which are very easy to cut, join, splice, re-sync, etc. I've done some quick research on the editing of VOB files, and it seems that there's a few free tools (but they appear to be mainly in German ???) that may help, but it looks like LOTS of work. Personally, I have never worked much with VOBs, unless I'm burning 'em. I suggest converting the VOBs to individual AVI files, then edit/resync 'em from there. However, once you change the AVIs back to VOBs, the menus may not work right. So- here's a real quick how-to guide:
First: Download and install TUGzip. TUGzip can extract RAR files, ZIP files, 7zip files, ISO files, many EXE files, and just about any archive or self-extracting archive you're likely to encounter. When installing TUGzip just click 'Next' all the way through. At the end of the install, there will be a little check-box for "Launch TUGzip"; go ahead and launch it; click "Next" all the way through again until you see a "Finish" button; there will be a column on the left side with a bunch of different archive formats; click the "Select All" button; click "Finish". A window will open that looks like an Explorer-type window, close it. Right click the ISO file and click the 2nd upward pointing green arrow, it will say something like "Extract to: .\filename" and the file will extract to a folder of the same name. Inside the folder you should see the VOB files, IFO files, and BUP files, or there will be an AUDIO_TS folder and a VIDEO_TS folder and the files will be in the VIDEO_TS folder, the AUDIO_TS folder will probably be empty.
Second: each new numbered set of VOB files is a separate "title". For example: if you have a DVD with 10 different clips, there will be 10 different number sets. This is not the same as chapters. Locate the VOB(s) that have the out of sync audio, convert 'em to AVI files using the free WinX Video Converter. Save them to a location on your PC that's easy to find. One quirk about WinX: it doesn't let you specify a file name; you can specify a custom save location, but the files will be named "0001.avi" and "0002.avi" etc. So maybe write things down so you know which VOB is which AVI. Be sure to use the XViD settings, and leave all the other settings at default. I usually use the option to "Keep resolution and aspect ratio" so the conversion will be the same size visually.
Third: Download and unzip AVImux-GUI. I don't think it requires installation and can be run from .EXE file once it's unzipped. Use these steps to resync the audio in a selected AVI file:
-drag the avi file into the top section, or browse to it.
-highlight it
-click "generate data source from files"
-2 parts appear: the video stream and audio stream, select the audio stream
-on the right hand side it says "delay (ms)", enter 180 (this will be different for every movie, you may need to play around with this rate a little until you get it right).
-click "start", select a save as file name and location
-click "save", wait around 60 seconds
-playback your newly synced AVI file to make sure it's in sync. If it's not, try again with a different delay setting.
Fourth- once it's in-sync, you have to get it back to VOB file, and the chpater info at this point is likely lost. So, download and install one of these freeware DVD creators:
DVDFlick http://www.majorgeeks.com/DVD_Flick_d5530.html
FAVC http://www.majorgeeks.com/FAVC_d5741.html
Video-To-DVD http://www.dvdvideosoft.com/products/dvd/Free-Video-to-DVD-Converter.htm
Once the AVI is converted back to DVD (VOB) format, the tricky part is getting back with the other VOBs that didn't require syncing, and then getting everything back how it was. You could always just burn each individual numbered VOB set to its own DVD (use DVDRWs in case something doesn't work out; this way you won't waste a disc and you can erase and try again), but that might require A LOT of blanks. You could also convert each numbered VOB set to it's own AVI, then re-convert and re-combine 'em into a single DVD using DVDflick or FAVC.

Phew - that was a workout!!!! There's tons of info on the internet on how to use the programs I've mentioned. A little Googling can go a long way. I know this is a really quick guide, and it's really short on details, so, again, Google is your friend. Unfortunately, re-syncing DVDs (VOBs) requires a bit of work and a lot of know-how. GOOD LUCK!!!

[dlb]