MY- Staggering/Juddering Play Back Problem Solved(Windows 7 HP,BT HOME HUB 2.0)
Been using PS3 Media Server on & off for a while, was put off with the staggering/juddering/missing 10 seconds - 2 mins of a movie playback for most(if not all) films, MP3 playback was no better, tried almost every solution on the forum & countless transcode settings - with no avail, was going to un-install it - but found an easy solution.
I store all my movies/music on a WD Blue Ring 1TH External HDD connected to my router.
1 - Un-Install PS3 Media Server & Re-Install( Clean Start )
2 - Connect you pc to your Wireless Router using BOTH wireless & wired connections, Ps3 wirelessly - Problem Solved.
You will have to manualy add the files to the PS3 MS/Navagation Share Settings/Shared Folders, just do them for the entire music, movies & picture files.
HOPE THIS WORKS FOR YOU.