I have a mac pro and plan to have this setup with 3 drives: Drive 3 will have my media files to share between apps on both operating systems - Pictures, Mp3s, Movies, etc. What format should drive 3 be in? I would prefer to have the drive writable by both operating systems. From what I can tell I have two options: HFS+ - Use MacDrive under Windows to gain access to the drive and read/write to it. FAT32 - Native support under each OS, need to use a 3rd party tool to format it to 320GB. (There is the third option of having NTFS and using ntfs-3g, but from what I can tell it's not something I should rely on and can occasionally cause corruption.) I guess the real question is, how reliable is MacDrive 7? Is it reliable enough to do a decent amount of writing to the drive and not cause corruption? Or should I just be safe instead of sorry and go for FAT32, and use each OS's respective drive for files > 4GB?