Hi, first post here so please go easy on me and I am having similar problems to Xcel's post further down. Pretty much all the rips I have done recently are stuttering on playback, trying to watch Superbad last night was terrible with bad stuttering (video only). My setup is as follows - Desktop PC running Vista x64 with LG HD-DVD/BR combi drive, where all the rips are done, then FTP'd to my server. Server PC running Server 2003 with an 8Tb RAID array and 1Gbps network. All the rips are stored on here. Media PC running Vista x86 with LG HD-DVD/BR combi drive, ATi HD2900XT, PowerDVD 3304 and 1Gbps network. Rips are played from a mapped drive on the server. I have been looking at various options and changes and I am pretty sure that the media PC is powerful enough (according to the Cyberlink Advisor), the RAID array has a high throughput and the network connections should have enough bandwidth to stream the video. Reading the other post, is there a known issue with ripping on one machine and playing it on another from a server? I cant use PowerDVD on my Vista x64 machine as it isnt supported and the video breaks up. Discs played directly on the Media PC run pretty smoothly and just about to try playing some rips directly off a hard drive on the Media PC, but I am at a bit of a loss really... I havent done the mounting ISO's and all that just yet, as I am not sure it would be of any benefit. Any suggestions?