Certain multimedia productions yield interactive tools that help understand complex concepts. They explain in a short, simple and effective way, the history, applications and functioning of complex technical topics. This paper aims to describe a virtual learning environment named MIDA and LEARNITRON. The first, has been designed to train students of Engineering careers in concepts with high abstraction requirements. LEARNITRON is an offspring, a subproject focused in automatic modeling learning profile of students according to the combination of students profile, topics to be taught and current set of multimedia tools. This paper also sketches ubiquity of LEARNITRON's information to evaluate students profiles. It is based on basic machine learning techniques applied to MIDA tracking data. The resulting model may be also useful to define specific features for better educational videos, and to acknowledge the right scope of multimedia as a way to teach or train students in Engineering subjects based not on personal opinion but on statistical findings.
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