Im having the exact same problem. I formatted just afew hours earlier, was installing programs as one usually does after a format, got to DVDshrink and the program just locks up when i hit backup. I have no idea why its doing this, if anyone has any idea on how to fix this, would be much appreciated.
But althought it may not be all DVD shrink related. When i tried to make an ISO image alone in nero, of this particular DVD, nero crashed too. Seems that something is conflicting within the pc... If anyone has any ideas post now