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Why Blu Ray is better than DVD

Updated on February 23, 2013


In 1995 a new video format was introduced to the entertainment world, the Digital Video Disc or Digital Versatile Disc, abbreviated as DVD.

The debut of the DVD overshadowed the popular video format at the time, the Video Home System or VHS. The DVD with a greater capacity for audio and video, a higher quality image and much more friendly storage size, quickly became movie viewers' favorite medium for watching their television series, movies, recording their home movies and essentially saving data. The DVD is the superior product when compared with the VHS, but just like the fading of the popularity of the VHS, the DVD is fading in light of the much more capable Blu Ray media.

Blu Ray v. DVD

Blu Ray disc
Capacity (GB)
27 GB
4.6 GB
Capacity (Hours)
Capacity (HD)
2 Hours
0 Hours

The Blu Ray Uprising

In 2006, after a decade of reign by the DVD, a new media has come into the limelight and begins to declare its superiority. The Blue Ray Disc Association first developed the Blu Ray disc in 2000, but six years after its creation it now begins to usurp the current king. While prices are a little higher for this new disc, the quality, length, capacity and versatility have began to outshine what foothold the DVD had gained.

In the table, Blue Ray v. DVD, it is easy to see why those who want more with their video or entertainment experience would choose the Blu Ray disc over a DVD. You have a greater capacity for feature length films and extras as well High Definition ability, which is becoming more and more popular amongst movie viewers.

Blu Ray
Blu Ray

Blu Ray's Future

Blu Ray will continue to grow not only in data storage capacity, but also in versatility and popularity. With the introduction of double-layer Blu Ray discs, the data storage capacity will essentially double allowing 20+ hours of video, which consumers relate to a more favorable movie viewing experience.

If you haven't had the opportunity to watch your favorite movies on Blu Ray, check out Blu Ray players and videos in your area to help make your viewing experience a much more favorable one.

Why so Blu?

A blast of technology is just what the disc world needed to make it a viable competitor to the advance of solid state hard drives or data stores much like the jump drives we use today. With the limited data space available on DVD, you simply couldn't get enough information onto the disc to make it competitive in the future.

The majority of the limitation simply comes from how the data was recorded and read. With discs such as the DVD, and you can even think way back to records for record players, the information is created by coding bumps and pits on the surface of the disc. Essentially, a laser would mark the disc with the data in the form of bumps and pits and this data would then be read by your DVD player. (In the case of record players, you have a needle reading the markings).

Essentially, the disc spins and the data is read by a laser, for the DVD it is a red laser. The data is also marked on the DVD in a spiral patterns, so think of reading this text as it circled around on a disc. The smaller and tighter you make the text, the more you can fit on the disc. The red laser reader for the DVD can only read the pits and bumps at a particular size and tightness until it simply loses to ability to read the info.

The BluRay disc takes advantage of a laser type that is more precise in nature, which means you can create and read data at a smaller size, which then means you can fit more data on a disc. As you read above, the data you can fit on a BluRay disc is by far more advantageous than what you can do on a DVD.

With tighter and smaller data packaging, more and more info is recorded on a disc and more can be done such as HD movies, high quality graphics, etc.

That is why we are becoming more and more Blu! BluRay that is!


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