In article <ee152328-5da9-4ffb-99de-afc49ce40b47@googlegroups.com>, Antoine Vignau <antoine.vignau@laposte.net> wrote: > Check if ProDOS is not a LOCKED file. > > In the BASIC program I see no other reason why it would fail other than > having a locked file, unless there's a typo... > > av Copy II+ 9.1 shows it to be unlocked.