CUE is a text file that describes how tracks are arranged in a super-audio CD and DVDs. Typically, CUE sheets come in plain text and have a filename extension of .cue. Today, this format is prevalent in most media players and optical disc authoring apps.
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MPEG-1 is a compression and encoding system defined by MPEG (Moving Pictures Experts Group). It creates multiple frame sequences of I, B, and P, with the I frame containing all picture data. The B and P frames only store information about the changes on the last I frame. Typically, MPEG-1 uses 1.2 Mbps data rate, which is the speed rate of CD-ROM.