evongugg prompted me to look it up myself on M$ Support. It does say there is a real size limit on FAT32 Partition size ONLY if they are created as part of the XP Install process. (So, it is recommended NOT to INSTALL to a FAT32-formatted Partition.) But when creating from a running version of Windows, the articles suggest FAT32 File System can be used on Partitions up to 2 TB, well beyond OP's concerns.