A CD that is not closed can be accessed (or closed) by any machine that has
CD mastering capability. There are no bits left over on the hard drive and
reinstalling the OS or CD drivers would not affect the ability to access the
disk and add more data to it, or to close it.
Because it is not closed the directory (actually, the TOC) needs to be
accessed in a special way. However, this also means that the directory can
be rewritten to include both new material and the original files, so it is
possible (at some waste of space) to add data to a mastered CD that has not
been closed. Once it is closed the standard directory (TOC) gets written
and new material cannot be added, but it becomes accessible to any hardware
that can read a mastered CD.
See, for instance:
http://www.cdrfaq.org/faq02.html#S2-19
--
Jeff Richards
MS MVP (Windows - Shell/User)
"Canuck57" <dave-no_spam@nospam.net> wrote in message
news:dbWrk.209900$gc5.190428@pd7urf2no...
>
> snip <
>
> True and not true. If you don't close the disk, the final directory
> information parts would not be written to the disk, thus making it
> unusable by other computers as in essence, it is a incomplete burn. The
> unburned data being retained on the hard drive for subsequent use.
>
> Problem though, if you reinstalled the OS or the CD drivers, these cached
> bits of directory data would get wiped out making the partially burned CDs
> useless.
>
> They did this so that you could add more files later as one you made the
> CD complete with writing the header/directory information you could no
> longer add for files to it using known formats that Windoze can use. That
> is, Windows does not have built in method of reading CDs in more than one
> partition. You can actually make a CD or DVD that in Linux can be seen in
> it's entirety, while on a MS-Windows system you only get part of the data.
>
> Frank is wrong if you consider it needs to be a complete and recoverable
> burn.
>