I have been trying to transfer a file (which is around 4 GB in size) from my PowerMac G5 to my office pc but windows xp on my office pc only reads the file to be 1.97 GB in size, I also zipped the file using the built-in zip utility in OS X but the size of the zipped file on my office pc is 1.97 GB and on my mac is 3.97 GB. I am using DVD media to transfer the file. Should I fragment the file for an easy transfer, please advice.