2. Whether it is a pre-sale version of the US version can be distinguished by the following contents:
A. The color of the cover is purple, not green.
B there are two discs in it, one is a music CD and the other is a tidbit. Making? Yes? Goodbye? A lullaby. You don't have to open this. You can tell how many discs there are by looking at the back cover.
C. Song capacity: The US version of the pre-sale music CD has 18 songs. The Japanese version has 19 songs (knock another one'? Open? Paradise? Door); I haven't verified the Hong Kong version yet.
3. Because the package cannot be unpacked, the verification method may have certain limitations.
4. Attach the cover of the regular version for comparison.