Simplify the following text for a Grade 10 native English-speaking person.
Original: EncyclopÃ dia Britannica Ultimate Reference Suite is a series of encyclopaedias that come on DVD , to be installed on computers .
Simplified: EncyclopÃ dia Britannica Ultimate Reference Suite is an encyclopÃ dia published by EncyclopÃ dia Britannica , Inc. , available on DVD .