Shrink with nero / decrypter not working in dvd player

im using dvd shrink to bypass protection, then if we try to use nero it crashes. so can anyone help with that? the main problem though is if we use dvd decrypter after shrink the dvd that comes out either works fine, or works fine then goes funny. some dvds will be fine, but others we’ve burnt either work once then start skipping and pausing every two seconds, or they just do that without working once. has anyone else had this problem and fixed it?

DVD Shrink DOES NOT BYPASS protection. You must bypass the DVDs protection by either DVD Decrypter or AnyDVD.
DVD Shrink does what it’s name implies, it enables you to drop selected parts of the DVD & compress if necessary.