The new Pocket Monsters Diamond and Pearl ending theme Which one~ is it? (Dotchi~nyo? ドッチ～ニョ？) will be released on CD December 16, 2009 in Japan. The CD's catalog number is ZMCP-5337 and it will retail for 1260 yen. The currently known tracks are the new ending theme and a new version of Surely Tomorrow （Ashita wa Kitto / あしたはきっと NewアレンジVer.). The full details for the CD haven't been announced.

The CD has been added to the database and will be updated as new information becomes available.