Yes, I am an application programmer and database administrator. Although video editing is not my forte, it is something I do more and more. My favorite program is
Cyberlink PowerDirector. It is highly rated, easy to use, and inexpensive.
My guess is you probably have a couple of options.
1. If you didn't clear your recycle bin you might be able to find the file that was accidentally deleted in the recyle bin.
2. Maybe you accidentally saved or copied it to another folder on your computer. If so, you can search your entire computer by going to your main drive (typically the "C" drive) and search for a file using the following: "*.vob" (don't include the quotes). The asterisk denotes a wild-card so your computer will search for all files that end in ".vob".
3. If you can't find a good converter you might be able to run the system restore choosing date prior to when you deleted your converter application. A system restore is like a "time warp" returning your computer to a state where it was on the date you chose. It typically affects only software and not files, but always a good idea to save the files off your computer before doing a system restore.
4. The only "free" converter I found is
ConvertVOBToAvi which I haven't had the time to test to see if it is not some form of virus or spyware. Whenever something is free I am more skeptical.
Finally note: Aspect ratios are 16:9 for High Definition and 4:3 for Standard video. This info might help you with your squishyness
Good luck,
Jeff