I didn't like the album tracks from JUMP WORLD at 1st as I thought they sound way too kiddy for my liking :x but after a while , I realised that they were made to sound like that in order to contrast the otherwise grown up sounding singles :O
It's funny when JUMP NO.1 was released , the opposite happened when their singles were kiddy sounding while the album tracks sounded very grown up
I wanted to get the CD only but in the end I think I will get the CD + DVD as I really like Endless Dream which's not included in the CD only edition =_=
JUMP WORLD would have much better if they excluded the sub unit group songs since it doesn't really make a difference since you have so many members in HSJ xD