Colinjones - As far as playing DVDs on the core, I can't get the sound to work; it has the integrated Realtek ALC883 which doesn't seem to work at all. I wasn't too concerned about this fact though since this system is my core. I would have to get the sound working on it to do an appropriate test on movie playback quality. In that case, is there an easy way to get my sound working? I will also attempt a crossover cable directly to my media device and see if that works (God help me if it does.). I have played DVD's locally on the media device internal DVD players without issue, but I haven't tried coping the DVD to the local system. I can see how that test would help eliminate the network as an issue. I'll give it a shot as well. I'm still green to the Linux world, which is a problem for me. I'll look at dmesg to see what is going on, and post it on here as I'll have no clue what I am looking at.
Niz23- I will have to see if the whole system freezes or just the playback. I’m thinking it is just the playback though. The internal NIC on my core is in use on the public facing network. I have a separate gigabit NIC in place for my internal 192.168.80.0/24 network. Would that eliminate the issue with the shared IRQ for the Nic and video card? Also the issue is on both the Intel and AMD based media directors, so I assume your concern is with the Core being an nForce based motherboards.