Ehhhhhhhhhhhhhh why can't all these homo companies get along
It's all Sony's fault. They always have to come up with some lame proprietary format that competes with a much more open standard:
Betamax
ATRAC
Memory Stick
SACD
SDDS surround
UMD
Blu-ray
The only time Sony has come out with a good format is when they have been willing to collaborate with more than just one partner-in-crime company, and they managed to invent the CD. The 3.5" floppy disk was alright too.