what chadd is referring to, more specifically, is the "grid" in which the drummer is not only playing to a click but the engineer (or whoever is behind the board) places each hit so that it's lined up perfectly on the recording program's grid. this not only makes it easier to crank out hit songs as a section that occurs multiple times in one song is just played once then pasted as necessary, but leaves you you with tracks that are in "perfect time" (and usually bereft of feel) that are as easily digestible as possible. that's how they crank out the nickelback/three doors down etc. garbage