My home networking patch area was so poorly installed, all the cat 5e has been over stripped and untwisted and extended by using electrical tape to bond each 8 wire together, so I cant achieve gigabit at the moment at you need 4 twisted pairs and the part untwisted cant be more than 0.5", well mines a complete mess, surprised I even manage to achieve 100mbit.
Got a few days off now, will rewire all that myself and plug it direct into the router with connectors, no point using the cat5e patch female plugs, have a feeling i'll need to re check the wall faceplates also, pretty sure once thats all properly terminated I should be achieve the speed I require.
After thrashing this out in this forum (thanks by the way) I'm pretty sure I probably dont have an issuem just this particular mkv encoding when transcoded is creating a huge video file to sent to the ps3. Whats easy to forget is that there is a different between streaming and transcoding. A blu ray wont exceed 52mbits so why does an MKV?.... well cause it is transcoded into something else which is more often than not, much bigger than the original mkv. As my Samsung TV is only on 100mbit but understand MKV's natively the bitrate wont ever exceed what ever the mkv was encoded at which wont be more than 52mbits as the bluray wouldnt have been more than that to start with.
Also thanks to thrashing this out I had no idea that ps3 media server would serve my PS3 are a much higher quality over gigabit, my mpeg2 settings were always left to default which isnt lossless, or wasnt for me, I set to lossless and good lord it looks so much better but during a busy scene the bitrate tops 100 again and then lags to sh1t.
Hopefully ill be back to post later this week that ive nailed this gigabit ting.
Learn alot from getting issues.