Conveting dvd format to import into in Vegas Pro

Hello, I have some video files saved to hard drives using Nero 7 Ultimate. I would like to convert these to a format that Vegas Pro video editing will recognize and load . There are a few ways i have found through researching and have downloaded them and each had problem . Using dgindex and vfapi I have an instructional video I found and watched it work but all was going well until I tried to save the file vfapi in the dialogue box there was no way to designate type of file the box was empty and the drop was too. There were two other programs or three I tried ... but something always went wrong like a plugin was not initialized.. I need someone familiar with converting rm ts files vob files dvd's to avi format then I believe Vegas will recognize them ........ This would be done through skype I Imagine or I could share the computer I am on with the person who is helping me .. Or I am sure experts out there have more ways ...... Let me know ...Best ........Dave