[WakeUpWolfgang]

I am using a model B version 1 Raspberry Pi. I am using a 2 AMP. rated power supply. I get the same effects when I overclock it or not. When I am playing standard definition videos it plays fine. When I play any high definition videos it is very jumpy and laggy. I thought it was an overheating issue so I added a heatsink to the processor but I am still getting playback issues.

I can steam the same videos to other rooms in my house just not to the Pi very well.

The videos are encoded as mpg2 and .MKV

[dandnsmith]

If the Pi is 256MB, and you are getting the source files over the network, then it's not too surprising that HD shows problems on playback.
There is quite a long thread about using 256MB Pi on the stmlabs forum for raspbmc.

[wsnipex]

Debug Log will probably give a hint whats going on. I suspect you don't have a hardware decoding license for the codec in question. By default only h264 is accelerated.

[bledd]

How are you connecting? Ethernet out wireless?

[WakeUpWolfgang]

I have the mpeg2 license. I will post the debug file once I get home. It is hardwired everything on my network is at least 1 gigabit.

[smitbret]

I have the mpeg2 license. I will post the debug file once I get home. It is hardwired everything on my network is at least 1 gigabit.

Being a Gigabit network is irrelevant since the RaspPi is just 10/100.

Also, the MPEG2 license is irrelevant. If you were trying to play it back and were unlicensed, then it would just give you a blank screen.

I would be interested to know the bitrate of the files, especially since you say they are all HD. Even a Model B with 512MB cannot playback an SMB share over 30Mbps without stuttering. Blu-Rays often exceed this.