These are the bootstraps for the RX01 and RX02 floppy. The rx01boot.pal and rx02boot.pal are the same file with the DENSTY literal set differently. Start the bootstrap from address 032. The rx01-02boot.pal will try to boot either rx01 or rx02 media first from drive 0 then drive 1 but is a longer bootstrap if you are toggling it in by hand. This bootstrap starts from 033. David Gesswein djg@drs-esg.com or djg@pdp8.net