Return_Values

   Upon successful completion, the Media Robot Driver library
   routines that access a medium-changer return the value MRD_
   STATUS_SUCCESS. On a failure, one of the following errors may
   be returned. The Media Robot Driver library will attempt to map
   SCSI failures to one of a small group of error codes, but not all
   errors have been anticipated.

   Many of the MRD routines accept a log_info argument that is a
   character array. When a SCSI error occurs, the the Sense Key,
   additional Sense Code and Additional Sense Code Qualifier are
   formatted into the space provided. If the error is an operating
   system specific error, then the text corresponding to the error
   will be copied into the space provided.
 

Additional information available:

Common_Values