On this volume you get 5 episodes(16-20), the individual volumes have been re-released into season sets and come in a nice box. At the current prices either the volumes or the sets are at the same price so if your low on space you might want to pick it up instead. The story starts to heat up as the group get ever closer to the IL and are confronted by their old comrades and everyone shows off some new special skills so expect more crazyness, comedy and action in this volume.
The video quality here is top notch, the colors and animation are vivid and full of awesomeness. While there are sometimes when charactes are in darkness it goes a bit pixelated but most anime go like that when it's dark.
The audio featured on the volumes are English 5.1 and Japanese 2.0, I wish english 2.0 was included because the 5.1 english track has some weird electronic noise everytime someone talks, probably something wrong during production.
Interviews - 30 minutes, first guy 25 minutes second guy 5 minutes. Kinda unfair.
Trailers - 7 mins
Clean Opening and Closing
The extras you get here are ok but you don't get a commentary track on this volume and in the interviews there's only two people talking and its mostly just the one guy. You do always get the usual clean opening and closing plus the ADV trailers which show the other releases at the time.