Look out BluRay + HD-DVD... here comes HD-VMD!

[Cobretti]

lvader said:
No, it does have to read that fast, it's 40mbps.

LOl 40mbps does not require 28x. its megabits not megabytes

DVD-ROM, 1x

11.1 Mbit/s

however in practice its about 10 Mbit/s  so 4x read be plenty sufficient.