There are two main ways to do this.
The free way.
1. Use DVDfabDecrypter to rip the contents of the original Region 1 disk to your hard drive. Then if needed resize the output to a DVD-5 with DVDshrink. Set the output in DVDshrink to ISO format. Then burn that outputted iso with IMGburn.
This even though is free, is still an excellent way to do this.
Or option 2.
Buy AnyDVD and CloneDVD from slysoft.
AnyDVD in the background removes all region protection and copy protections on the disk without you needing to do anything.
Then you can rip from the disk and compress if needed and then burn all with CloneDVD.
Both ways are great and are recommended.