On Aug 23, 2013, at 11:56 , Arthur Flexser <flexser at fiu.edu> wrote: > The BACKUP command doesn't care about the file system format, and will work > fine for copying a 35-track OS-9 disk under RSDOS, for example. Thank you! -- Mark J. Blair, NF6X <nf6x at nf6x.net> http://www.nf6x.net/