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How CD-DVD Burning apps & the drive are able to identify the media type in the drive i.e. whether the inserted disk is CD-ROM or DVD-R or DVD-RW and so on?

I understand that the session info is written on the disk, however does information about media type pre-encoded on the media somewhere say in Lead-In area or so in some way?

I have searched the net but this specific info does not seem to be clearly available.

Prasanna
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patkim
  • 5,592

1 Answers1

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From what I have Gathered the Drive Lazer/Program on the PC what the PITCH value is on the disc. Explained in this Article.

The Image is below showing the Different Pitch values for each.

enter image description here

NetworkKingPin
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