Quantitative research: Sales of CD's and DVD's

Sales of CD's and DVD's: -

Sales of CD's and DVD's are an important way of showing people how much of a certain CD or DVD sold allowing them to see if it is something they might to also buy, but it's also a way to show artists and/or producers how much of their CD or DVD was sold giving them an idea of what the public thought of their CD or DVD allowing them to improve on certain aspects or keep things the same or similar.

Below is a chart showing the amount of physical and digital purchases there were in 2008 and 2012 of music albums, video games, and video's. These are the main categories of media that were put out for physical and digital purchase in 2008 and 2012.