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Best Buy: Upside Down [2 Discs] [3D] [Blu-ray/DVD] [Blu-ray/Blu-ray 3D/DVD] [2013]
Back in like the early part of the 00's DVD's came double sided for a time being with the “Full Screen” edit for traditional TV's and Widescreen for the newer modern models. :
Double sided DVD's - Are they prone to problems? - Media Discussion - MLP Forums
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