Something went bad within the data file itself. One or more of the data pages is corrupt so the CRC is incorrect.

This is a problem that I almost never see (I've actually only seen it on workstations, never on a server).

The best answer by far for your specific circumstances would be to rebuild the database from scratch using BCP. The problem can definitely be fixed, but without knowing how it occured I'd much rather avoid dealing with it than trying to fix it.

-PatP