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How to use optical discs
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Passthrough reading and recording (a.k.a., “burning”) are not supported
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by Qubes OS. This is not a limitation of Xen, which provides scsiback
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and scsifront drivers, but of Qubes OS. It will be fixed in the future.
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Currently, the only options for reading and recording optical discs
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(e.g., CDs, DVDs, BRDs) in Qubes are:
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1. Use a USB optical drive.
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2. Attach a SATA optical drive to a secondary SATA controller, then
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assign this secondary SATA controller to a VM.
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3. Use a SATA optical drive attached to dom0. (**Caution:** This option
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is `potentially dangerous <https://forum.qubes-os.org/t/19075#dom0-precautions>`__.)
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To access an optical disc via USB follow the :ref:`typical procedure for attaching a USB device <user/how-to-guides/how-to-use-usb-devices:with the command line tool>`,
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then check with the **Qubes Devices** widget to see what device in the
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target qube the USB optical drive was attached to. Typically this would
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be ``sr0``. For example, if ``sys-usb`` has device ``3-2`` attached to
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the ``work`` qube’s ``sr0``, you would mount it with
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``mount /dev/sr0 /mnt/removable``. You could also write to a disc with
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``wodim -v dev=/dev/sr0 -eject /home/user/Qubes.iso``.
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