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Latest versions of VirtualBox supports several formats for virtual disks, but they forgot to provide a comparison between them.

  • VDI
  • VMDK
  • VHD
  • HDD

Now, I am interested about a recommendation or comparison that considers the following:

  • be able to use dynamic sizing
  • be able to have snapshots
  • be able to move my virtual machine to another OS or even another free virtualization solution with minimal effort (probably something that would run fine on Ubuntu).
  • performance
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Run Virtual box and click the help icon > Contents, there is a fair explanation in there under "Virtual Storage" – Moab Nov 23 '11 at 1:03
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Regarding migration to "another free virtualization solution... that would run fine on Ubuntu", I'm pretty sure VirtualBox is available for Linux. – Iszi Rory or Isznti Nov 23 '11 at 4:29
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