CDs are not recognized/mounted

Hello,
I just realized that the Mac mounts some CDs (e.g. Operating System, videos) and some not (e.g. MS Office, Palm Treo Installation).
I have had recently a repair due to a thin CD that was stuck in drive and wouldn't eject. Additionally I have installed an Airport Card a few weeks ago.
So I wonder what could be the reason for the mal function.
Any hint on that and what to do?
Thanks a lot and greetings from Leipzig, Germany

Coachdl wrote:
I have OSX 10.9.4. The CDs do NOT show up on the desktop. They are just ejected after a few moments of trying to read them.
If they are ejected, then of course they won't show up.
Is this all music CDs?
Have you tried a CD/DVD disc cleaner?
If that does not do it, see baltwo's response here -> https://discussions.apple.com/message/25254659

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kext-Version: 1.4
Lade-Adresse: 0x92a000
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Identifiziert: Ja
Abhängigkeiten: Erfüllt
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CDs are not recognized/mounted

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