Hi. I'm being offered the chance to fill two 500gb hard drives with Grateful Dead concerts. Most files will be about 1gb. My benefactor is using Windows machines and from what I have read I need to format them beforehand as NTFS disks. Do I need to partition the drives in any manner? Or am I good to go if I just reformat the drives to NTFS and mail 'em off. When I get them back, I will probably transfer the files to new disks formatted with HFS+. My computer is a Macbook Pro. If there are any other red flags I should know about before sending them off, your advice would be most appreciated. Thanks!