Video playback problem

[Inspector Jihad]

I've noticed that my video skips from time to time...these aer downloaded videos so i know its not the internet connection speed. what do you think the problem is? do i need more memory?

my comp is in my signature link. thanks for any input

 

[Inspector Jihad]

?

 

[biostud]

which format?
which codecs?
which player?

 

[Inspector Jihad]

wmv's on wmp were skipping and also the videos on prince of persia