#9.BetaMax

During the 1970s, Sony developed a machine designed to deliver home video-taping equipment. Betamax tapes could be played only 60 minutes which isn’t really long enough for a movie and since it was a higher quality product, it came with a high price tag. All this led to its failure. Also, Sony don’t let other manufacturers make their players.

#10.Mini Disc

The MiniDisc is an obsolete magneto-optical disc. Though its format has the running time and quality of a CD, it is much smaller and more portable than a regular cassette. You could also re-record a disc without losing any audio quality. However, it was never quite worth the expense and soon it was abruptly destroyed by the arrival of mp3.

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