Hi Thomas; I am very pleased with your answer to my questions. However I still can't make it work. I type "mount_msdos -o ro /dev/fd0a /floppy" and it reads: corrupt track(0) data fd0: input/output error. The disk is formatted in dos system having 1.44m capacity. Maybe BSD-Amiga only recognizes 720k disk. cs_yus@cs4.lamar.edu