Application Details of paramErr, rfNumErr, gfpErr, volOffLinErr, permErr, volOnLinErr, nsDrvErr, noMacDskErr, extFSErr

Error Id:	-50
Error Code:	paramErr
Error Message:	Error in user parameter list

Error Id:	-51
Error Code:	rfNumErr
Error Message:	Reference number invalid

Error Id:	-52
Error Code:	gfpErr
Error Message:	Get file position error

Error Id:	-53
Error Code:	volOffLinErr
Error Message:	Volume is off line

Error Id:	-54
Error Code:	permErr
Error Message:	Software lock on file; Not a subscriber [permissions error on file open]

Error Id:	-55
Error Code:	volOnLinErr
Error Message:	drive volume already on-line at MountVol

Error Id:	-56
Error Code:	nsDrvErr
Error Message:	no such drive (tried to mount a bad drive num)

Error Id:	-57
Error Code:	noMacDskErr
Error Message:	not a mac diskette (sig bytes are wrong)

Error Id:	-58
Error Code:	extFSErr
Error Message:	External file system - file system identifier is nonzero

Error Id:	-59
Error Code:	fsRnErr
Error Message:	file system internal error: during rename the old entry was deleted but could not be restored*