What do you consider a "surround" plugin, James?

I have just been using normal plugins, I suppose, like reverb and compression.  I have used the surround compressor though, forget which one.  I will repost should I have a similar experience.  Which plugins would you recommend playing around with in SONAR?  Are the plugins you are referring to 3rd party software?

A surround plugin I guess is a single plugin with 6 inputs and 6 outputs (for 5.1 that is). The problem with Sonar is that it's designed to adapt stereo plugins for surround ie. it simply inserts 6 instances of the plugin, linking the controls. So when you insert an actual surround plugin with 6 ins and 6 outs, it still inserts 6 instances of that plugin and creates a big mess!

The Sonitus plugins work fine with surroundbridge, but I haven't had any luck with any other 3rd party plugs, eg. Waves, Izotope etc. I really hope it's me that's the problem. I was fiddling around with it again today, and discovered all is well with a track soloed, but when everything is in the mix, that's when the delay is introduced. Sounds like some manual delay compensation is needed...help anyone?

Are you still doing surround? i'm curious on what dts encoder or method you were using?
I'm looking at doing some.