mpeg1 or IC takes more power

[mrvideoconfused]

Here's my question, which takes more processing power for the clie nx73v to decode, mpeg1 or a MQV file?

Basically I'm trying to pick a format to use for my movies. I have a movie encode twice. 1st encode is a mpeg1 file at 400kbs 15fps and the 2nd is a MQV file 384kbs 15fps. After viewing both files over and over again I can say that both seem to have the same overall qaulity. And the file difference between both files is about 3-5 megs and since i have a 1gig cf card it isn't that big of a deal. The only thing left is to figure out which format is the least cpu intensive.

Thanks

[mrconfused]

Mpeg1 should take less processing power than mpeg4 unless the nx73 has some kind of dedicated mpeg4 decoding circuitry in it. If if does than the MQV files would probably be less intensive than mpeg1. I have no idea if the nx73 has a sep mpeg4 decoder chip or not but i hear that the UX50 probably does since the processor on it is much slower than the intel xscale. And there prob is some sort of a mpeg4 decoder chip since the UX50 can play MQV with 30fps.