Yes it is. I love it
What I mean is that Orange Caramel has 4 versions of their Lumo No Love Song single. A normal one, then three with DVD. One with a variety show recording, one with the Japanese Lipstick MV and one with the Lumo No Love Song MV.
Normally you get singles in 2 versions. One with just the song and one with the MV. Sometimes a 3rd, which then would be the MV version + extra goodies, not suddenly a whole other video.