Question, why did DVD succeed when earlier RCA CED and Laserdisc bombed?

[centralradio]

I always thought CED was the 8track of video with their VHS LP video quality with the muddy audio.They are similar like a vinyl record with video on it.

LD would hit better if they were formatted for 2 hours or more play on one side.It probably would of lasted longer then it did.Also I read they have flaking problems like some old DVDs get.More likely people wanted something smaller like the music CD.