I have just installed a new Western Digital 120GB external firewire hard drive and am moving my video files onto it. However, two large files, one 4.5GB and the other over 8GB, won't copy - I get an error message that there is insufficient disk space. I've only filled about 11GB on the firewire HD so far. I noticed after installation that this drive is formatted as FAT32. Is that the problem? Have I run into the 4GB limitation? When I installed the firewire HD I was not asked how I wanted to format it, it did it automatically. Can the HD be reformatted as NTFS? If it can, how?