The Scribe PC from MF Digital is loaded with features.  Here is an overview of their Job Queuing and Image Pre-Loading feature.  

Scribe software has unlimited job queuing.  This is a very important feature when a duplicator is a shared, network resource.  With the license free client software, it is possible to have many duplication jobs submitted simultaneously, or continuously since the client software can be loaded from 1 to 100s of PCs throughout an organization.  The Scribe will process the jobs FIFO or First In - First Out based on what jobs in the queue.

The Scribe also pre-loads the disc image to the hard drive of the duplicator, which is a huge time savings feature.  This means while the duplicator is burning an Active Job, it will pre-load the next two jobs (disc images) to the hard drive from over the network.  The result:  A Scribe will immediately start burning the next job in queue with no additional download time needed from the network.