So I have seen this on a few " rental " machines that I have used lately and was wondering what the best way to go about making sure it doesn't happen is? The issue is seeing files that have tearing or some blank pixel artifacts in them. Now I thought that it might just be that file but I looked at other files in the machine and saw it on several of them. I also saw it on more then one machine and it is in teh same place on the file each time. Now coming from the PC world my thoughts were to just format the machine and then reload everything but I am not sure if that is the best idea using a MAC. So if anyone has any ideas on the best way to make sure that these " rental " machines are all in the best shape before i do my shows please let me know.

Thanks as always

Cameron