Yamaha CD Recordable/Rewritable Drive CRW2200S - Manual (Page 16)

Before Use
8
Once you have taken the CRW2200 drive out of its packaging, you should
immediately note down the serial number found at the top of the drive with the bar
code. You may need to refer to this number when requesting Customer Support
services. In the box below the following diagram, write down the 10-character serial
number (consisting of 3 letters followed by 7 digits).
Serial Number
Serial No.
Serial number
(3 letters and 7 digits)