I think they can all manage 640M. Some are longer, depends on what your vendor says. David \_ SMTP quoth Carl Parrish on 3/13/2002 12:43 as having spake thusly: \_ \_ I thought that depended on the size of the CD. for instance I have a \_ 700MB CD. to do a back up I star the directory I want backed up then \_ gzip and / or split until I have an iso image that will fit. \_ \_ Carl P. \_ \_ On Wed, 2002-03-13 at 11:49, Lynn David Newton wrote: \_ > \_ > My previous post about cdrtools and xcdroast were just \_ > a windup to a question. \_ > \_ > Who can tell me what the correct upper limit on the \_ > size of an iso9660 (CD image) file system is, in \_ > blocks? Or in megabytes? \_ > [...]