※Please consider purchasing only if you understand that this item has been stored at home. ※I purchased a nearly new 4-volume set on Amazon. Since it's from Amazon, it is a completely authentic product. The item has been opened. ※As it is an authentic product, there are no playback issues, so please rest assured. ※I will take the two discs out of the outermost packaging and ship them in a parallel arrangement via Letter Pack Plus.