CDs and DVDs shop in Guangzhou and Hong kong ?

Hello

I will go this year to Guangzhou and Hong kong and I need you help I want CDs and DVDs shop there that sells Jrock (japanese visual rock) new ones like ALICE NINE , GAZETEE , MIYAVI,.........

please if you know tell me the Name of the shop or the mall and where to find

I think you can go to there and ask someone.
I just have gone to Guangzhou once, so I am sorry to tell you that I don't know where you can buy that.
I haven't been to Hongkong.

But I hope you will have a good journey and buy something what you need.