Simplify the following text for a Grade 10 native English-speaking person.
Original: Since 2003 , the popularity of live CDs has increased substantially , partly due to Linux Live scripts and remastersys which made it very easy to build customized live systems .
Simplified: Many more people have started using Live CDs since then , because of programs like Linux Live scripts and remastersys which make it very easy to make your own personalized Live CD .