Backing up dvds with DVD Shrink

[slimmx]

I want to back up Scarface because I let a few friends borrow it and I don't think it could survive for long. I want to keep the movie and all of the original structure but I don't know what I can take out that I don't need from it. I have no idea what some of the things on that dvd are. Please help someone.

[FOO]

If I was doing it I would hit ReAuthor and then drag the
Main Movie - Title 1 to the new window , then kill
audio except for AC3 6ch English, kill subpictures
and then hit start/end and get rid of the leaders and credits
and Backup with 100% (no compression)

[slimmx]

Is dts 6ch English needed. I don't know what it is.

[Colindale]

??I don't know what it is.??

Digital Theatre Sound.

Unless you have an AV Amplifier that has a DTS decoder, there is no point in keeping it.

[lacywest]

Could use Nero Recode 2 ... and see what shows up.

I did Disk 1 of Lord of the Rings Extended version ... not bad ... I got a 70% after removing the commentaries.