Minidisc - agree, they wre short lived.
Google Glass - kinda still being developed, hasn't been killed off completely.
Zip Drives - weren't failed .. they were around for about a decade. The 100/250/750MB cartirdges were backwards compatible. Orb drives were flops though
3D TV - Was a wank to begin with. We've got a few 3D titles, but the biggest failing is that unless the TV fills your entire field of vision (or you sit really close) the effect is largely lost. Not a complete fail just a poorly thought out gimmick.
HD DVD - Dumb idea as bluray was better in every single way.