rajendra82 on 01 December 2008
| SMcc1887 said: There is a big difference between DVD and Blu Ray. Cmon people, think of all that Raw HD Uncompressed data! |
What raw HD uncompressed data? In NTSC format DVD typically stores 720x480p video data using MPEG-2 compression, while Blu-Ray stores 1920x1080p video data using MPEG-4 or VC-1 comression. The bit rate of the audio and video data on a DVD-Video maxes out at about 9.8 Mbps, while that on a Blu-Ray, it maxes out at about 48 Mbps. Since Blu-Ray is storing about 6 times more video data, it can be argued that it is actually storing a more compressed version of the data than DVD-Video (although use of a newer codec means the bitrate is actually being used more efficiently)
