they are saying you can find you serial number in email address
Hi
. . . . they are saying . . .
Who?
If you have just bought Music Maker online then you should have received an email with your serial number in it.
Check the email has not ended up in your spam email box.
You can also check your registered products and serial numbers by going to the magix.com website then click My Account top right of the home page.
Enter the email address and password you registered with.
Click My Products ths will take you to a page containing your registered products and serial numbers.
HTH
John