At 07:55 AM 10/4/00 +0200, you wrote:
>Pippi wrote:
> >You can't write to a cd, even the rewritable ones, without destroying the
> >existing data, they just don't work that way.
>
>I see you haven't had any experience with CD-Rs (Recordables) nor CD-RWs
>(ReWritables) ;-)
>
>We'll start with the CD-R.
>What you say are true, but mostly on 1X CDs (that doesn't have
>multi-session ability). The cost is ca 20MB for each started session IIRC.
>Most (I wouldn't say all since someone probably still has a 1X) CDs can
>handle that you add data to it, however there are some big problems with
>this (IMHO):
>
>Now, if we go into CD-RWs it's a completly diffrent matter - you can write
>and rewrite all you want. And if you thought CD-Rs were expensive you
>haven't seen a CD-RWs so they can not be used ;-)
>BTW: The original max speed was specified to being 2X for reading from a
>CD-RW (in "datapack" format), I guess they changed this somewhere along the
>way (and writing was 1X).
I will explain in more detail what my brain says is correct and why. I was
taught both in school, and beside the desk of a friend who has both a cdr
and cdrw drives on his machine, the cdr is 8x and the cdrw a 4x I believe.
The data on a cd is written in one long track. When you record your cd
(burn a disk) you lay the data down and when you are ready to finish, you
"close" the end of the recording. In both cdr and cdrw this finishes the
cd and it is now possible to read from it. With a cdr the cd is no longer
writeable and is ROM.
In the case of a cdrw the cd may be written to over and again, though there
is a limit of how often, something like 50 times before the media wears
out. As my friend explained, and the school, when you wish to rewrite the
cd you must first format it to wipe out the previous single track and then
begin again as a blank cd.
If you have experience with drives that can create readable cdrw that
aren't closed and can be written into without first being reformatted, you
have a most wondrous technology which is not yet common knowledge.
But, I may be wrong, even though I do not think I am. It is not important
enough for me to further prove my knowledge so I will not be researching to
find sources that corroborate, but feel free to do so to show I am wrong!
bye,,,,,,,,,,,,,,,(\
Yolanda ,,,A+,,,,,,\\_/(\
UIN 4898262,,,,,,,,,Q Q \)
rockettalk 383426 =(_T_)=
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