Ivan Berg Software Ltd About Roles Name : Ivan Berg Software Ltd Software Role Publisher Type Year Know Your Own Personality (Unknown) Mirrorsoft Ltd Educational 1985 Know Your Own Psi-Q (Unknown) Mirrorsoft Ltd Educational 1985 BBC Mastermind (Unknown) Mirrorsoft Ltd Quiz 1984 BBC Mastermind Quizmaster (Unknown) Mirrorsoft Ltd Quiz 1984 Change Request You can request changes or additions here. You can upload files. All change requests are actioned as quickly as possible and you will be informed of the result. Details Files Your Name * Email * Details Your browser doesn't have Flash, Silverlight or HTML5 support. Submit Thank you for your change request. We will respond as soon as possible.