<< IMHO, your problem arose because you were trying to transfer files from a OS-9 machine to a OS-X machine without having saved those files in OS-X format in the first instance. OS-X looks for information in the file identification that OS-9 never heard of and can't put in. >> Could you elaborate, please? I move and or open OS9 files in 10.3.9 all the time with no confusion at all. I've done that within the same machine, via CD's as well as flash drives and compact flash cards. STeve