2 DVD-Rs onto 1 DVD-R

[downer]

I know how to convert DVD9 to DVD5. But what if you have two DVD-Rs and you want to convert them to one DVD-R. Is there any guides that explain this?

I would probably want to use some form of re-encoding method as I am more interested in quality then time.

Any help would be much appreciated.

Thanks.

[Baldrick]

DVDs to one DVDR:
guides
https://www.videohelp.com/guides.php?tools=&madeby=&formatconversionselect=DVDs+to+one+D...or+List+Guides

tools
https://www.videohelp.com/tools?toolsearch=&orderby=Name&listby=Section&convert=DVDs+to+...+or+List+tools

[downer]

The one thing I am confused about is when I rip the first DVD-R I got 4 vob files and when I rip the second i get 4. I assume i need to combine them so should i label them in order (1-8) and then go from there?

Will i need any of the .ifo files or just the VOB?

thanks.