Close
  • Home
  • Services
  • Clients/Screening Room
  • About Us
  • Testimonials
  • Awards
  • Blog
  • Photo Gallery
  • Contact Us

Contact Us

Sloan Productions

San Diego's Award-Winning Video Production Company for 35 Years

  • Follow Us for the latest updates:
(858) 573-0987
Menu
Home/Resources/What is a Blue-ray DVD

What is a Blue-ray DVD

April 23, 2008

Blu-ray, also known as Blu-ray Disc (BD), is the name of a next-generation optical disc format jointly developed by the Blu-ray Disc Association (BDA), a group of the world’s leading consumer electronics, personal computer and media manufacturers (including Apple, Dell, Hitachi, HP, JVC, JVC, Mitsubishi, Panasonic, Pioneer, Philips, Samsung, Sharp, Sony, TDK and Thomson). The format was developed to enable recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data. The format offers more than five times the storage capacity of traditional DVDs and can hold up to 25GB on a single-layer disc and 50GB on a dual-layer disc. This extra capacity combined with the use of advanced video and audio codecs will offer consumers an unprecedented HD experience.

While current optical disc technologies such as DVD, DVD±R, DVD±RW, and DVD-RAM rely on a red laser to read and write data, the new format uses a blue-violet laser instead, hence the name Blu-ray. Despite the different type of lasers used, Blu-ray products can easily be made backwards compatible with CDs and DVDs through the use of a BD/DVD/CD compatible optical pickup unit. The benefit of using a blue-violet laser (405nm) is that it has a shorter wavelength than a red laser (650nm), which makes it possible to focus the laser spot with even greater precision. This allows data to be packed more tightly and stored in less space, so it’s possible to fit more data on the disc even though it’s the same size as a CD/DVD. This together with the change of numerical aperture to 0.85 is what enables Blu-ray Discs to hold 25GB/50GB.

  • Facebook
  • Google
  • Twitter
  • Linkedin

Posted in Resources Tagged With: Apple, Blue-ray DVD, blue-violet laser, camera crew san diego, current optical disc technologies, Dell, high-definition video, Hitachi, HP, JVC, Mitsubishi, optical disc format, Panasonic, Philips, Pioneer, playback, professional video production san diego, San Diego California, San Diego Video Production, Sharp, Sloan Productions, Sony, TDK, Video editing san diego, Video Production California

« To Drop or Not to Drop – Drop Frame vs. Non-Drop Frame Timecode
ESPN E:60 Bionics »

Archives

  • February 2020 (1)
  • March 2019 (1)
  • February 2018 (1)
  • March 2017 (1)
  • August 2016 (1)
  • July 2016 (1)
  • March 2015 (1)
  • January 2015 (1)
  • October 2014 (1)
  • March 2014 (1)
  • July 2013 (1)
  • May 2013 (1)
  • April 2013 (1)
  • March 2013 (1)
  • February 2013 (1)
  • August 2012 (1)
  • July 2012 (2)
  • March 2012 (1)
  • February 2012 (1)
  • January 2012 (1)
  • November 2011 (1)
  • October 2011 (2)
  • September 2011 (1)
  • August 2011 (1)
  • July 2011 (2)
  • June 2011 (1)
  • May 2011 (1)
  • January 2011 (1)
  • November 2010 (1)
  • September 2010 (3)
  • August 2010 (3)
  • July 2010 (5)
  • June 2010 (4)
  • May 2010 (4)
  • April 2010 (57)
  • March 2010 (1)
  • February 2010 (3)
  • January 2010 (1)
  • December 2009 (1)
  • October 2009 (3)
  • September 2009 (2)
  • July 2009 (2)
  • June 2009 (2)
  • May 2009 (2)
  • December 2008 (2)
  • November 2008 (1)
  • October 2008 (6)
  • April 2008 (4)
  • February 2008 (2)
  • January 2008 (2)
  • October 2007 (1)
  • September 2007 (1)
  • April 2007 (2)

Categories

  • Behind the Scenes
  • News
  • Resources

HVS-Sloan is a 4 time National Emmy award-winning video production company with over 35 years of experience helping our clients produce compelling branded content, commercials, live events, features, corporate communications and educational content.

HVS-Sloan Communications

5694 Mission Center Rd.
Ste. 602-307
San Diego, CA  92108-4312
858-573-0987

 

  • Home
  • About Us
  • Testimonials
  • Services
  • Clients/Screening Room
  • Awards
  • Blog
  • Photo Gallery
  • Contact Us
  • Areas We Serve

HVS-Sloan Communications © 2025. All Rights Reserved.  |  Privacy Policy   |  Developed by: TinyFrog Technologies