I am just posting this information in case someone else could find this useful. Others like myself will soon be upgrading to Windows 7 and when I did I had some issues with PS3 Media Server. I kept having a constant picture freeze at random times during playback that would last between 15-45 seconds. It drove me a crazy and had me going off on a hunt to fix this problem. I never had this problem with XP or Vista so I had first looked to PS3 Media Server for resolution, unfortunately after a lot of searching I did not find any resolution.
I tried many different versions, even the latest beta releases and all would produce the same results. I started looking beyond the software and noticed that with ps3 media server pushing out 720p and DTS audio encoded across the network it was sending some heavy traffic and when it reached a certain threshold the whole network would drop to 0/kbs .
Oddly I then remembered that when i did my fresh install of Windows 7, when I first logged in I was prompted for 3 updates and one of them was my network card. Jackpot. My network card was this:Realtek RTL8168C(P)/8111C(P) Family PCI-E Gigabit Ethernet NIC (NDIS 6.20)
For some strange reason Windows 7 decided to update it to a previous version driver, back to 2007.
My Roll Back Driver button was highlighted, so I rolled back my driver and viola. My "good" driver is back and everything is Smoooooth as whistle.
So for anyone running a Gigabyte motherboard with that NIC and plan to upgrade to Windows 7, check your NIC driver cause that helped me!
Here is my good driver and everything running great