Hi all, i have a big problem

In 3 days i have a job interview for editing home footage, weddings etc.
I am currently preparing my show-reel for my interviews and most of the past projects i am wanting to display are on DVD. Being i never kept them because i updated computers recently and gave my other computer away, never saving it all as prefered file types.

So when i put my past projects in my computer, they show as IFO files,
now obviously what i need to know, Is how do you convert them back to
AVI files so as i can import them into Premier Pro to make my Show-Reel?

Can Windows it'self actually do this(don't care if it's slow)?
or do i need some software to do it?

Would rather not spend ANY MORE money if i don't have too, for i'll be in big
big trouble from my other half, AGAIN! (due to recent editing spending spree)

Please help someone!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!