Reecy wrote:
I made a copy of a CD and sent to a friend but her computer won't play
it. It doesn't even show up in her E drive, which is her CD ROM drive.
Yet she can play her other CDs in it. It is a CD-R that I sent her. Is
there a problem with the CD I sent her and what could it be?
I don't know much about things like this and would greatly appreciate
any help.
Thank you very much.
There are a number of reasons why her CD cannot recognize the
CD-R you sent her. Here are some of them:
1. If you were making a data CD by copying individual files to
the CD and did not finalize the CD after you wrote the files then
the directory information was not completed and the CD cannot be
read. The software you used to prepare the CD should have offered
you the option to finalize the CD but if you did understand why
you had to do that you may have said no.
2. Because writable CD's use a dye-based layer where the data is
written some older CD readers have difficulty reading them. The
dye-based CD's don't reflect as much light back to the reader as
the manufactured CD's which are pressed.
In simple terms the writable CD's have a silver layer behind a
layer of dye. In writing the dye changes to let the light reflect
off the silver back layer but some light is lost since the dye is
never completely transparent. In commercial CD's the silvered
layer has depressions pressed into it which change the reflection.
3. The CD itself might be defective, or the copy you made was
defective. Always try to read the CD yourself before you send it
off? At least then you know your CD reader can read the CD if
someone comes back saying the CD could not be recognized.
Without more information on what software you used to prepare the
CD, what brand and type of CD you were using, what brand and type
of writer you were using and your friend was using to read the
CD, etc. there is not much more I can say to help you figure out
what went wrong.
Brian Kelly
Rockland, ON
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