Normal discs and DVD players are read and created using a red laser. Compared to blu-ray which uses, what else, a blue laser, the red laser has a larger wavelength which decreases the amount of space on a disc. Blu-ray discs can hold up to 50GB of storage, which in turn allows for pristine picture quality. The blu-ray disc can also be read forward or backward which means that it is compatible with DVD’s and CD’s.
 

Unfortunately, whether consumers can afford them or not, entertainment and movie companies are beginning a fairly hasty switch to blu-ray. Seven of the eight major movie studios (Disney, Fox, Warner, Paramount, Sony, Lionsgate and MGM) are making equal amounts of blu-ray discs as normal DVDs, and six of them (Disney, Fox, Sony, Warner, Lionsgate and MGM) are also making some of their movies exclusively in blu-ray format. This means that although consumers don’t have to buy a blu-ray player to actually view the movie, they do have to purchase the more expensive discs, with no change in quality if watched on regular players.
 

Blu-ray appears to have a monopoly on the video disc market. So many studios are supporting the change in technological advancements that the opinion of a majority of consumers is not taken into account. However, the picture quality of blu-ray is superb and the prices will eventually decrease. So, in the end, it’s a matter of preference and technological savvy, but as for me, high definition works just fine.