Display Recorder is a wonderful jailbreak app by Ryan Petrich for creating a video recording of your iPhone's screen. Some users, however, have been having problems creating new recordings and have seen Error Code 0 or 2. As far as I can tell, the issue is related to the way that Display Recorder stores files in the file system to circumvent ASLR obstacles and the permissions that iTunes applies to them during backup restores.
It seems that the only users affected by these errors are those who recently restored from an iTunes backup or upgraded/downgraded their firmware. Luckily, the fix is pretty simple and can be done in under ten minutes...