====== DVD and Blu-ray Comparison ======

  * [[http://www.videohelp.com/dvd|What is DVD?]]
  * [[http://www.videohelp.com/hd|What is Blu-ray Disc, AVCHD, and HD DVD]]
  * [[https://en.wikipedia.org/wiki/Optical_storage_media_writing_and_reading_speed|Wikipedia Optical storage media writing and reading speed]]

==== DVD ====

  * 720x480 (NTSC), 720x576 (PAL)
  * MPEG1 or MPEG2 video codecs
  * Video ~1.38 MBs/second
  * MP1, MP2, AC3, DTS, PCM audio codecs
  * Audio ~448 Kilobits/second
  * Color: SMPTE170M

==== Blu-ray ====

  * 1920x1080, 1280x720
  * H.264 4.1, VC1, MPEG2
  * Video ~4.5 MBs/second