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The Aleratec 1:3 DVD/CD Copy Tower Stand-Alone duplicator incorporates the latest 22x DVD recorders for simultaneous DVD copies at up to 22x speed or simultaneous CD copies at up to 48x, without a computer. The 1:3 DVD/CD Copy Tower can also copy to DVD-RAM media and offering the broadest format compatibility available. The 1:3 DVD/CD Copy Tower makes quick copies of a DVD/CD, by just placing the master disc in the source drive, loading in blank media for the number of copies you want and pressing "Copy".