Media Identification Code
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The Media IDentification code (MID) is used on DVD-R, DVD+R and DVD-RAM discs to recognize the manufacturer and to assist the DVD burner to select the best write strategy for the inserted media. The technology is inherted from the ATIP code used on CD-R discs.
If the DVD burner recognizes the discs it means that the disc has been tested by the drive manufacturer to achieve the best possible burn using an optimal write strategy. The strategy is stored in the firmware. Writing to a disc with no MID code or a code that is not recognized can result in inaccurate recording and data read-back problems.
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