Bukkit

 ♦ Version 1.3
    Info:
        Fixed 2 major bugs!
        - Filled Inventory no longer prevents the making and collecting of blocks. They will now drop at your feet if you have no room.
        - 63 diamonds no longer gives the diamond blocks without taking away your diamonds.
        Added items to be /block-ed! String and Clay are now added and configurable.

Sound, if set to true, will play when the player types /block, whether or not they have any items to compress. The message performs similarly. If set to false, neither have any problems.