Why am I able to run hulu's flash app, but not crackle's. How do they differ?

[corinthos]

I rooted, edited my build.prop file, and
changed the device info so that I can see
and download crackle and hulu from the
market on my Optimus v (which is not a
flash compatible phone from what I've
read ). I am now able to play hulu videos,
but when crackle runs, I'm being told that I
need to have flash. Both crackle and hulu are flash apps (as far as I know). Any idea why hulu runs
and crackle doesn't?

 

[sitlet]

they use different encoding and delivery methods