CCXGUI server and Settings Help

I couldnt get the SMB sharing to work. And hence sought the help of CCX GUI server. Presently using CCX GUI v 0.2.8.0
I tried playing high quality lossless Audio and It plays perfectly.
It also plays the general low quality video files with ease.
But when I move into High Definition / DVD vob / ISO files the playback seems .....the playback seems to stop for half a second and plays smooth for 2 seconds and this continues all through out the playback....

I guess it could be the buffering settings in the Xbox(CACHE...)?
Any suggestions....
Any other options other than CCXGUI
What is the difference between CCXGUI and CCXstream?
I hate npup options since transcoding is involved...
Please help with suggestions

Regards

HP