Xbox One games won't require disc to be in console
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Xbox One games will use Blu-ray discs and will only be used for initial installation  Microsoft has said that games can be installed to the Xbox One's hard drive and you won't have to insert the disc again after that. However Wired notes that Microsoft has said a fee will be charged for any game disc to be tied to a second Xbox Live account after its initial installation, but we assume that this means someone purchasing a second hand copy will still be able to run the game from the disc without a charge. Source: Wired