Out of memory.

I/O Error.

Too many files/guide files open.

(Locked)

Bad function parameter being passed to Apple Guide DB.

Duplicate key in guide file.

File permission error.

Can’t write to guide file. It may be damaged.

File not found.

The "data fork" resource you want to delete was not found.

Resource Error (ResError).

(Compact)

Index into RefList is out of range.

No Data Handler in Guide File.

No Stemmer in Guide File.

This is not a correct Apple Guide Guide File.

This key is too long.

Not a Apple Guide DB specific error (see error code below).