New Sony Coupon/Coupon Code - Save $40 on the Sony 8GB NWZA-818SLV mp3 player

We have a new coupon for Sony:
Save $40 on the Sony 8GB NWZA-818SLV mp3 player
Restrictions:
Expiration: 06/01/2008
Coupon code: WALKMAN40
Please let me know if this Sony coupon does not work.