how can i burn an old single layered dvd which needs to be flipped?

hi all,

My goodfellas dvd is on two sides as it is not dual layered. How can i put this onto 1 disk?

I know i need to shrink it but im not sure what files to move over as some appear to be the same.

I have tried to change the numbers on the 1gig files but not sure what elsE?

Please help
Mark

 

Thanks, ill give it a go,
Mark

 

dvd shrink