When a job is submitted that requires media that are not included in the [Media catalog], these media become temporary media. The control panel displays the temporary media in the following places.
In the list of [Required media] in the [Schedule] view, when the job is scheduled for printing.
In the list of [Temporary media] in the [Media] tab of the [System] view.
When you plan to use a temporary media more often, you can add the media to the [Media catalog].