[quote name='UjnHunter']Actually if the code is for XBL, if you enter it into your Xbox 360, a screen comes up that tells you what the code is for and presents you with a "redeem now" option I believe.[/QUOTE]If it's an XBL sub or a XBLM points code, then yes, you get a "Redeem Now" confirmation before it gets redeemed.
[quote name='62t']Not true. If a code hasn't been use you get one more confirmation before redeeming it.[/QUOTE]No, it is correct. See above. XBL subs and XBLM point codes get a redemption confirmation before being used, item codes such as for DLC, XBLA games and the like, there's no confirmation.