I don't know . J-One Records never mentioned the photobook in being a limited edition & etc
maybe CDJapan only ordered a certain amount of stock pertaining to it because I know for the Kami no Shizuku photobook's case , it's also out of print on their site but HMV Japan still have stock (which I'm still pondering if I should get a copy for myself locally or not LOL)
HMV Japan - yes they're fast
& my last order though them which was flumpool's Unreal EP came within 2 days's time which really shocked me because I usually get things from them in my inital orders with them within 3 days +
& FOR ONCE the postman came up to my house because my past orders with HMV Japan , that didn't happened & I had to go to the post office personally to collect them T_T seeing that I'm living in an apartment
Also just like before when your dad had to sign the parcel from me to you reg the Kami no Shizuku photobook & LIPS single , this will happen for your BtR photobook too
that's always the case for registered mail & EMS so yup