hello! to start I want to say I've found a solution to this problem!
after searching and searching I found the way.
1 - you must close the application
2 - then we appear that damn red sign above that says iMiniRECORDING
3 - we press the home button twice. and we are aligned down the apps.
4 - we press imini and keep it pressed until shake
5 - there appears a (-) in the top right. played there and ready.
This is called the force close apps
I hope they serve and sorry my english I'm Argentinian