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 ...

While Sony is ceasing production of recordable Blu-ray discs, they're still available from Verbatim and possibly others. However, MiniDiscs may be hard to come by as Sony was one of the few ...