ISRC, or "International Standard Recording Code" is the internationally recognised coding assigned as a unique identifier for your music.
It is a way of "finger-printing" your music to prove ownership and to allow for royalties to be paid back to you, the artist.
Not everyone does go down this path, but if you do decide to we can encode your master with this code.
Applications for your ISRC can be made through here...
http://www.aria.com.au/pages/isrc.htm
The Butler Mastering
