What Are Blu-ray Films?
Blu-ray movies feature high definition video and audio as well as advanced interactive features.
The name "Blu-ray" refers to the ‘blue’ laser (which is actually violet in colour) used to read the video.
How Does Blu-ray Differ From DVD?
This violet short wavelength allows higher density storage of data when compared with DVDs which use red laser. As a result, DVDs only support standard definition and don't have enough space to allow for film storage at high definition (HD). Whereas single-layered DVDs only offer around 4.7GB of storage, Blu-ray provides 25GB of storage on a single-layered disc. Blu-ray discs also last longer because they’re more scratch-, shatter- and smudge-resistant compared with DVDs even though they share the same dimensions.
All in all, blu-Ray is a far superior quality video storage format in every way.
As you can see in the comparison of image quality below from a scene from Lord Of The Rings, the Blu-ray image to the right allows for sharper, more vivid images with more intense and natural colours. Blu-ray allows sharp, crisp and clear images that are more life-like.
Audio And Video Formats
Blu-ray also supports a wide variety of video and audio encoding formats called codecs. However, all will be able to be played by your Blu-ray disc player or Blu-ray compatible computer. For the technical gurus out there, here’s a list of compatible formats:
Supported Blu-ray Video Formats include:
Supported Blu-ray Audio Formats Include:
Linear PCM (LPCM)
Dolby Digital (DD)
Dolby Digital Plus (DD+)
DTS Digital Surround
Similar to DVD, Blu-ray has region-specific encoding meaning certain discs can only be played in certain global regions.
Region A: North America, South America and South East Asia.
Region B: Europe, Africa, Middle East, French territories and Greenland.
Region C: The rest of the world including Russia, Asia, and China.