thank you. I am just a student. Selling Cds is for my medical university fee. I worked hard to receive many positive feedback on Amazon. I did nothing wrong. Their mistake upsets me so much Ebay, before I chose Amazon, I tried to use EBAY, but I found that it takes long time to upload a CD, there are too many details I need to write down by hand..... So what instruments did you use , could you give me some advice.... thanks .