Most modern computers can read CD-RWs without problems, and can boot from them as well. Actually, if the computer can run XP, it can probably read CD-RWs.
Saves you a ton of CDs and you can erase it when a new release of a plugin is out!
EDIT: I forgot: CD-RWs only let you rewrite to them about 25 times and the data only lasts for a little over a year (in my case anyway), so this is a good solution for testing the WindowsUBCD or Bart's PE. Then, after you get all (or most) of the bugs worked out, you can burn it to a CD-R and not waste so many!
Good luck!
