File id is dangling or doesn't match with the file number

-1307

Can't exchange a file with itself

-1306

Desktop database file are corrupted

-1305

Catalog has been modified

-1304

Files on different volumes

-1303

Directory specified

-1302

File id already exists

-1301

No file thread exists

-1300

Write permissions error

-61

Bad master directory block

-60

File system internal renaming error

-59

Volume in question belongs to an external file system

-58

Not a Mac diskette (signature bytes are wrong)

-57

No such drive (tried to mount a bad drive number)

-56

Drive volume already on-line at MountVol

-55

Permissions error (on file open attempt)

-54

Volume not on line error (was ejected)

-53

Get file position error

-52

Refnum error

-51

Error in user parameter list / Obsolete equivalent to paramErr

-50

File already open with write permission

-49

Duplicate filename (rename)

-48

File is busy (delete)

-47

Volume is locked

-46

File is locked

-45

Diskette is write protected

-44

File not found

-43

Too many files open

-42

Memory full (open) or file won't fit (load)

-41

Tried to position to before start of file

-40

End of file

-39

File not open

-38

Bad name in the file system

-37

I/O error

-36

No such volume

-35

Disk full

-34

Directory full

-33

Unknown reason

File System Error