I remembered..
My grandad's house used to has this...
there was lots of the "black cd" collections in the shelf..
meanwhile, I saw they throw the collections...after the invention of the CD player...
Life is just so simple! come and go! get and forget! New then become Old....When you think someone is doing bad to you, just observe when the time it comes, it go as well...Therefore compassion to everyone is like treating a vitamin for ourselves