Thank you to everyone for the help.
Since I first posted my question, I have done more research on this issue and I will share some of that with you. But before I do that I want to go back to the beginning.
I took the source material vob files through the NERO 4 convertor and it DID convert the vob files to mpeg2. However, every so often, the mpeg2 playback would skip a very small portion of the audio only (annoying!!!). The original video (in vob) plays flawlessly on a stand-alone DVD player so I know there are no issues with the source material. But the original program was filmed in 1975, so maybe going to mpeg2 is the problem. I am going to try again by converting to mpeg1. Maybe there was not enough information for an mpeg2 conversion.
As stated earlier, here are some quotes found during my research:
“I know that VOB is coded as a form of MPEG-2, but what I want to do is to convert a VOB file to a normal MPEG-2 file that can be edited in Premier or other editing software.”
“What you need to do is use a DVD authoring program to create the other required files (.IFO, etc) for compiling a usable DVD.”
“…my understanding here was that although the encoding in mpeg2 and VOB is the same, the headers are different, things such as filesize in mpeg2 was limited to 4 bytes hence the 2gig file limit, VOB only being different in that it had the bigger offset and lengths so to convert from one type to the other didn’t require encoding just rewriting…”
My research, in addition to the above, came to the conclusion that if you simply change the vob extension to mpg, mpeg1 or mpeg2 there is a high probability of problems down the road, i.e. files not being recognized by the NLE editor or a finished product DVD that would not play properly.
At this point I am going to try two different approaches. One is the mpeg1 conversion and the other is a different convertor than NERO 4. I found a convertor called ConvertMovie that flies the Microsoft flag on their page and thought that this might be a good and reliable program.
Please share any further thoughts that you may have.
Thank you again for your assistance.
Jim