I've a 3 gigabyte ISO file on my Ubuntu virtual machine on VirtualBox, and I would like to burn this file to a real DVD. I know that I can burn an ISO file to a DVD using right-clicking on the file and choosing "Write To Disc", but if I try that, my real DVD is not listed. How can I make sure that my real DVD is listed so I can burn the ISO file to it?

  • In the settings of the virtual machine did you add an entry for the DVD drive? – cybernard Dec 31 '13 at 15:01
  • @cybernard: In VirtualBox, I went to the Storage settings of the Virtual Machine, but I'm not able to add a DVD. – ProgramFOX Dec 31 '13 at 15:02
  • @ProgramFOX - Does the virtual machine see the actual optical disk drive installed in your system? Does your system support all required hardware virtualization? – Ramhound Dec 31 '13 at 15:06
  • @Ramhound: According to the Microsoft HAV Detection Tool, my computer is configured with hardware virtualization. – ProgramFOX Dec 31 '13 at 15:10
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    Why cant you copy it to host and burn? Much easier I believe. – tumchaaditya Dec 31 '13 at 18:24


1. Click on the SATA or IDE depending on your system.
2. Click the **+** symbol to the right for add **CD/DVD**
3. Say leave empty.
4. Click on the device labelled **Empty**
5. Goto the right side of the screen
6. Click the drop down next to the tiny CD icon and select your real CD/DVD drive letter.
    **Host Drive d:** for example.
7. Click passthrough
8.Click Ok 

reboot the VM and try again.

  • Something strange: when I click "Write to disc", then I get a disc with 1.7 gigabyte free space, but I actually have more than 4GB free space on my disc. What's going on here? – ProgramFOX Dec 31 '13 at 15:49
  • Do you have the newest version of VirtualBox 4.3.6? Did you start the virtual machine with the DVD already in the drive? – cybernard Dec 31 '13 at 16:58
  • Yes, I have the newest version. About the DVD already in the drive, I'm not sure, but I'm not going to test it now. Currently I'm just trying to compress the ISO file to a .7z file and then uploading it to a website and downloading it again on my primary system. – ProgramFOX Dec 31 '13 at 16:59
  • Why upload it to a website? If ubuntu(the guest OS) has samba installed you can go directly to the VM from the host. Once samba is installed an configured. On the host Run: \\<ip address of guest\sharename Click Ok or <Enter> – cybernard Dec 31 '13 at 17:05

You do not need passthrough at all. Just grab the CD/DVD driver from the rim of your VM windows after starting it.

But there are also other solutions, like writing your iso image to a folder shared between host and guest, and then use the host's instruments to burn the image to DVD.

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