All of the formats Sony killed have been around for decades, with BD-RE arriving 2002, MiniDisc in 1992, MD Data in 1993 and MiniDV cassettes, primarily used for video production, first appearing ...
A DVD disc 80mm in diameter. Using the same platter size as the mini CD, mini DVDs hold 1.4GB of video compared to 4.7GB for the regular 120mm DVD. A few camcorders were built that recorded onto ...