The European Commission has set volume limits for MP3 players in all European Union member states. This means that your Zune HD or other mp3 player will not be allowed to output anything louder than 80 decibels under the default settings.

Officials argue that the limits are necessary since devices can play music at levels loud enough to cause permanent hearing damage and they do so without warning listeners. The EU mandate will still allow users to override the settings as long as they’re informed about the possible consequences.