It's a smaller version of the Jan AVN Expo, but with actual sales of video/DVD/toys/etc. I think it's a Friday night/Sat/Sun event (Jun 18-20?). It's been held at the LA Convention Center in the past. AVN operates it.
Usually, I try to go to it on Saturday. Good for seeing Industry folks, but not for meeting up with a model and taking her to a room to shoot like we were able to do at the Las Vegas shows.
Dave
www.davecummings.com