Hi,

I came across this error a just before christmas. In my case (there were 3 block corruptions in the system tablespace)According to Oracle support, the safest/best way to fix the error was to recover from my last backup and, as I'm running in archive mode, role forward to a time before the first reported 1578 error. This meant losing 2hrs work but meant the system was back running in a short period of time.

Regards

Moff