We are proud to inform you, that we have added more than 580 explanation videos to each single Physics multiple choice question in our Software Products DLR1 Premium and DLR1 Lite. At this point, the  language of the videos is in Turkish language. The English language for the videos will be available shortly as well as explanation Videos for each single Mathematics multiple choice question. The respective software update will be free of charge for all our existing customers who have purchased the software after October 1st 2019.