Hmm... Well, it's depending, because there are two kinds of CG packs: Hentai CG packs - where these again in several categories divided (though, there gives it also mixed genres) are, Hentai Game CG packs (where from the VN games the H scenes extracted are - but there are also non-H-scenes), Hentai Manga/VN CG packs (where the erotic artworks of them scanned are), Collected CG Hentai Artbooks (where from games/manga's/LN's a collected artbook gives - often also with some extra CG-artworks. Sometimes also in crossover.). But there gives also Non-Hentia CG packs (where it can be ecchi, but none exposed with displayed gender-body-parts, like vaginas etc.).
