On Sat, 2 Feb 2008 11:36:20 +1100 "Barbara Malpass Edwards" <[EMAIL PROTECTED]> dijo:
> I need to send some documents away on disk, but they only burn as 'read > only'. Is there some instructions I have forgotten to give? You have failed to grasp something about optical media (CDs and DVDs). Optical media works by having a laser burn infintesimally small pits in the plastic of the CD/DVD. Once this is done it cannot be easily redone. The plastic has little pits in it and that is it. Contrast that with a hard disk which has magnetic oxide coating. Data is stored on the hard disk by magnetizing tiny portions of the oxide coating. This can be easily demagnetized and remagnetized over and over for longer than the bearings in the hard disk will hold up. Therefore a hard disk is read/write, but a CD/DVD drive is generally write once. Having said that, there are technologies to allow a user to rewrite a CD/DVD, but you need to buy special rewritable media, and it doesn't hold up for more than a few rewrites. So when you burn a normal CD or DVD it will always be read-only unless you have a read/rewrite drive and use rewritable media. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
