Person A works in Office A. He has a presentation to do at Office B. Person A goes to Office B for presentation but realizes he left disc A (which contains his entire presentation) back at Office A. He could have it sent electronically (he has an image file on his computer at Office A) to him but his ethernet port has playdoh in it from Kid A. So Person A calls Person B at Office A and has him send bin/cue files to Person C at Office B. Said Person C burns the bin/cue files for Person A and the presentation goes smoothly.
there real world example, noone dispute this because i got confused typing it