Originally Posted by
Synthaxx
SLI in WoW just isn't there. Never has been, probably never will be since there's no reason to. If your computer is so good, and i have no reason to believe it isn't, then there really should be no issue recording (at least if you're recording to a seperate drive). Since SSD write speeds are generally comparable to a HDD write speed (while an SSD read is much higher), and HDD's are much higher capacity, it means that you can dedicate a high capacity drive purely to footage and as long as you maintain your footage collection, it'll be a long time before you fill it out.
It may not scale well, but it does run competently on most hardware, with the exception of Shadows. I've personally had no problems FRAPSing from any game, be it WoW, SC2, or other at 1080p at 45FPS. I'm gonna really roll with it being some sort of issue with your system. If you're having real issues, make sure you're not recording to a RAID array, as there's a few chipsets out there that suffer immensly under those sort of circumstances (i believe i had a similar issue on a JMicron JMB363 controller on an old board).