How do I write to a CD?

[k47867 at kearfott.com]

Hello:

   I am looking for Python code to open, read, write, close,
and make bootable the following:
  CD
  DVD
  USB Drive

   Can I just use open(), read(), write(), and close() for
these? And how do I make something bootable?
Is there a portable way to do this that works for both
windows XP/Vista and Linux?

Thanks in advance:
Michael Yanowitz