请帮忙翻译-现在客户收到这光碟后并不知道是谁快递和这个光碟快递给他干什么用的，

Please do not forward the CD via express delivery to the clients directly, or at least, you should advise the clients well in advance. Now some clients receive this CD without the sender's information or don't know what to do with it. This will cause unnecessary delay or loss of the CD.