problem backing up dvd's legally

[butch81385]

i am trying to back up some of my dvds on my new dvdrw i got for christmas
(yes, suprisingly i am trying to do it legally, im not copying rented or borrowed movies... well not this time)

this is my first time trying to use my new rw. i know that dvds are encrypted, but every dvd that i try to run in dvd shrink or dvd x copy says error, copy protection, this disc is enccoded or something like that...

any suggestions?

[Rand Dusing]

Even with DVDShrink? Try the newest one out which is beta and see if that works. With the newest DVDShrink I just ripped Meet the Parents and then backed it up to a DVD and it worked fine.

[butch81385]

well, i restarted my computer, and tried it again. it didnt work... so then i said, "WORK" and tried it again. it worked...

how much compression can i use and still have great video?
Is level 6 too much?

edit: also, which sound should i keep? ac3 6-ch, dts 6-ch, ac3 1-ch, ac3 2-ch, and ac3 2-ch and 3-ch "unspecified"