HYDME0817W TS1140 (3592 E07) drives can only write JB media in an E06 format. Exported volumes will be written in a non-E06 format.

Explanation
      The pool is set to export volumes in E06 format, but one of the borrowed media types does not support
    the E06 format for the drives in the system.

  
Operator response
      Change the copy export recording format to one that is supported by the media for the type of drives on the system.