I formatted the CF card in OS9 using Disk Utility. I would assume it was formatted as a standard HFS (what OS8 used to call HFS+). It also could be something in the partitioning scheme I had used when setting the disk up. I'll try again tonight. It just seemed strange something I could do (boot from PCMCIA CF) on my 1400c I couldn't do from a later model powerbook (TiBook 400)