VOB files are heavily compressed and not really suitable for editing. I suggest you ask the copyright owner for the original material before compression.
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VOB's can be problematic, but it really depends on what is in that VOB "container," and how it was created. This ARTICLE will give you more background.
Some work fine, but some are just problems.
Thank you. I have added the link to the DVD-VOB article.
If the dvd was made with a dvd recorder it can get tricky.
If you have a camera with analog in connect the dvd player to the camera and the camera with firewire to the pc.
This way its a hardware conversion to dv-avi.
There is also a program that is called VOB-edit which can fix this for you.
You can also use a program like Womble which can edit these vob's with no trouble.
Thank you for all the information. It will take a while to sort through it but I did find some helpful ideas. I have an ADVC300 and will give that a go. Also, I was about to try to record a separate audio to replace the original that when I renamed the VOB to MPG only lasted a few seconds.
I have 5 DVD's that were recordings of a local news program's interviews with the client over the past few years. There is no longer any "original" material. I have to rerecord each to a FLV format to be placed on the clients new website. The first two worked perfectly - I copied the VOB file to a hard drive and imported it into PproCS5 and then exported it to a FLV. It went fine. The next three were a different story. I then experimented with the changing the vob file type to mpg with the third dvd and the video worked well but the audio onlu lasted a few seconds of the 5 minute interview. I haven't tried # 4 and 5 yet. I will try the ADVC300 method tomorrow and try that one out. When I tried to render the 3rd renamed video in After Effects it go an error about 2 minutes in on the 5 minute video and stopped - also the audio only lasted a few seconds. For what I need to do I'm guessing the 300 method may do the trick.
Will let you know...
I have seen many instances, where the TV stations used DVR's to hand off DVD's to a subject. Those almost always cause issues.