Assuming your OS is recognizing the drive correctly, the CD that you are trying to write onto has probably been finalized.
When a CD is finalized, no more writing is allowed.
There are special software such as Nero or Roxio to write to CDs, but if the CD was finalized, even the software won’t help.
If you want to do multiple writes to a CD, make sure that the blank CD you will be using is a re-writeable CD-RW.
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