Hi Xlinder, yes I understand that from the operating system it works smoothly, I'm talking about when you have to install Debian from the beginning, when you copy to the optical disc the ISO image downloaded from the official Debian website and start the installation process. At a certain point, after choosing the language and the keyboard type, the installer tells me that it doesn't see the optical disc drive and I don't understand why... Everyone sees it in a direct way and I don't understand why the Debian installer is the only one who doesn't see it...