I do have "_HD" added to all of my HD files so that is an excellent idea. Since my original post I have rethought what I want to do. I am adding 2 more PS3s to my network and these will have libraries taylored to the viewing audience (Kids, Young Adults). This will be something that I will have to live with for a long time. So I have to really analyze my options and then experiment to see how it works.

As for "PS3" naming, I transcode all my movie files to make them compatible with my WD HD media players. These are older versions that cannot be networked. All resultant files also play fine on the PS3 without transcoding. So no need for that naming requirement.