Noob, (.mkv file) it goes in jerks

[RGS]

I ask excuse if the problem has been already discussed,
AMD Athlon(tm) 64 processor
3500+
2.21 Ghz, 1.00 GB ram
XP PRO SP3, is my PC
PS3 MS v1.04
it works cn the divx divinely, with the photos and music
if but I want to see a hdrip (.mkv file) it goes in jerks
how I must make?
Thanks to all you for the great job that fairies

[Seff]

What kind of HD rip?

I say your processor is a bit weak for HD rips. Check your buffer status - if it's always empty, then it's most likely the processing power your CPU lacks. Did you try to alter Mpeg2 Video Quality settings in Common Transcode Settings menu?

[nmaf]

what kind of connection are you using?
720p stuttered for me wirelessly, but was fine on 100mbit. 1080p stuttered on 100mbit, but was fine with a cat6 cable @ 1gbps.