[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.

[Robert B]

I have an Acer Aspire 5740-5513 laptop and the BIOS workaround doesn't
work for me.  I don't get the VFS error in dmesg but I am still unable
to mount my backup (data only) iso9660-based DVD.  In fact, when I
insert the DVD, it just makes a clicking noise and is completely
inaccessible.

CDs are readable, but I am unable to write CDs.

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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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