How to rip off 2 dvd movie and combine into i DVD?

i hav 1set of Chinese drama series in dvd format totaly 3dics,(DVD 5 >> 4.7G)
and i would like to rip off those series to put inside one disc only (DVD 9 >> 9G)

How to do it ? using what kind of software is easy and better ?
Is there any guide in this forum to refer ?

Thk in advance

I think the term you’re thinking of is “rip” not “rip-off”. lol

You can use Shrink; here is a guide that might help.

thanks dude,
i will try and see