[Bug 412527] Re: Cannot mount media in DVD rom drive, Acer Timeline 4810T. Drive is detected, and media only detected if placed in the drive when machine suspended. Even then DVD movies (purchased) are not recognised - error message that media is unknown. Audio cd's sometimes play. When trying to unmount, I am asked for my password - message given that another user mounted the media.

[Elmar Isele]

I have exactly the same problem with pressing eject button and freezing kernel till the medium is
ejected. Afterwards no medium is recognized after insertion, which is very annoying.
I will try to change the SATA Mode to IDE, which is in my oppinion inacceptable.

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Cannot mount media in DVD rom drive, Acer Timeline 4810T. Drive is detected, and media only detected if placed in the drive when machine suspended. Even then DVD movies (purchased) are not recognised - error message that media is unknown. Audio cd's sometimes play. When trying to unmount, I am asked for my password - message given that another user mounted the media. 
https://bugs.launchpad.net/bugs/412527
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