video playing slowly

[gelatin]

i have an ibookg4 1.25gb ram 22 gb hard disk space
i have a video which is about 590mb and 35 seconds long when i play it in quicktime it it really jumpy,slow laggy or whateveer the word is.
i need it to play smoothly so i can add some stuff to it in after effects

need help quick deadline comiing up
is there some program i can use to make the file size smaller while keeping the quality?
i am trying aaltshiiva atm i shall see how it goes
i tried it and the file size went down to about 5 mb but it became even worse and was much more stop start

 

[MacBoobsPro]

590mb? 30 seconds?

Is it some super super HD video?

 

[gelatin]

yeah i know im converting it to smaller size with different formats at the moment
mpeg4 reduced it to 5 mb but was still jumpy

 

[MacBoobsPro]

yeah i know im converting it to smaller size with different formats at the moment
mpeg4 reduced it to 5 mb but was still jumpy

Reduced it down to 5MB?

Something doesnt sound right at all. Im no expert on video files but 590mb for 35 seconds is insane. And to be able to reduce it down to 5mb is also similarly fishy. You must of been encoding it for days.

I cant help you im afraid apart from saying something does not sound right with the file to begin with.

 

[gelatin]

finally got it to play smooth in .dv format it is about 120 mb
but there is a quality loss,i have to have it for TV quality
is the quality too low?
top-compressed bottom-original