KJ Pro is a software for making Karoke Song Books. They are stealing from people because they are no longer offering updates. They haven't updated their software for at least 6 months. So if you have bought new songs, they won't be in the database therefore defeating the purpose of buying their software. THESE GUYS KNOW THIS AND ARE STILL SELLING THEIR CRAPPY SOFTWARE. Then they say you cannot get a refund on it!!
Make sure the company you buy software from updates their software at least monthly.