Vid-20150216-wa0030

In a technical or software context, "Solid" could refer to a few different things.

A popular, declarative JavaScript library for building user interfaces. VID-20150216-WA0030

A set of five design principles in object-oriented programming (Single responsibility, Open-closed, Liskov substitution, Interface segregation, and Dependency inversion). In a technical or software context, "Solid" could

A solid modeling computer-aided design (CAD) software. In a technical or software context

If this video file is related to a bug report, a specific tutorial, or a feature demonstration within one of these platforms, could you share a bit more or where you found the reference?

Are you trying to this specific video, or are you asking about a functionality within a piece of software named Solid?