I have no idea of the downside of doing it. Without it you can be up a creek without a paddle when you need 9 for an unforeseen reason. kunga10 (AIM) kunga47 (Yahoo Messenger with Cross-Platform dial-up Video sans audio on Macs) On Wednesday, August 13, 2003, at 06:17 AM, Dale Hoffman wrote: > When formatting a drive for use with OSX, is there any DISadvantage to > including OS9 drivers? > If not, why make it optional?