I'm not sure where to ask this question but here is my situation, I am a computer science teacher trying to push 60gb files to my classroom lab of 24 computers as fast and as efficiently as possible. I currently have a network share that takes about 20 hrs to transfer a 60gb file from 1 teacher computer to all 24 lab computers. I would like to be able to transfer one 60gb file to all 24 computers in 1 block period, 90 minutes. I have tried to work with my school's IT department but they are unwilling to help me in this matter. So upgrading the switches and network is not an option. I have looked into multicast options but this is a new avenue for me and I am not sure where to start. All suggestions are welcome.