This box set contains "BEST GENERATION" and "BEST GENERATION (International Edition)." The CDs include all the singles released up to this time, which is from their debut one "BRAVE IT OUT" to the latest "BIG CITY RODEO," as well as new song(s). These English versions are included in the discs of "BEST GENERATION (International Edition)." This set also includes "Hana," "I Believe In Miracles," "Sora," and "Y.M.C.A." as well as covers of EXILE ("SUMMER TIME LOVE," "I Believe," "Lovers Again"). The DVDs include music videos each for 24 songs previously released, new one(s), and "Y.M.C.A." The DVDs also include live performances at a-nation, documentary footage and documentary on their world tour. Box packaging with a photo book.