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May 11st, 2006

Panasonic and Sony Jointly Developed New HD Digital Video Camera Recorder Format for Recording on Disc

Tokyo, Japan, May 11, 2006 - Panasonic, the brand name for which Matsushita Electric Industrial Co., Ltd. is known, and Sony Corporation today announced specifications for "AVCHD," a brand new high definition (HD) digital video camera recorder format the two companies jointly established. The AVCHD format allows for recording and playback high-resolution, digital HD images using 8cm DVD media.

The two companies have started preparations for licensing to extensively promote the format throughout the industry.

Panasonic AVCHD
- Logo Mark of "AVCHD" format -

In Japan, BS digital HD broadcasting and digital terrestrial broadcasting are expanding widely. Coupled with the emerging growth of HD broadcasting across the world, penetration of HD-capable TV sets is gaining unprecedented momentum. This sets the stage for enjoying HD images more easily at home. Panasonic and Sony will extensively promote this format throughout the industry as the new HD digital video camera recorder format best suited for the HD era.

The "AVCHD" is an HD digital video camera format for recording 1080i*1 and 720p*2 signals onto 8cm DVD media by using highly efficient codec technologies. The format employs MPEG-4 AVC/H.264 codec for video compression, and Dolby Digital (AC-3) or Linear PCM for audio codec. This makes it possible to develop HD video camera recorders which achieve compact size as well as high-quality video and audio.

The MPEG-4/H.264 codec is a promising technology which is over two times more efficient than MPEG-2 or MPEG-4 codec technologies. By adopting this technology, an "AVCHD" video camera recorder can record high quality HD video images onto 8cm DVD media.

*1 :1080i   one of HD specifications that has 1080 efficient scanning lines by interlace method
*2 :720p   one of HD specifications that has 720 efficient scanning lines by progressive method

[Outlines of "AVCHD" Format]
  Recording Media
8cm DVD
  Wave Length of LASER
650nm
VIDEO   Video Signal   1080/60i
   1080/50i
   1080/24p
  720/60p
   720/50p
   720/24p
  480/60i   576/50i
  Number of Pixels
   (Horizontal ? Vertical)
  1920 ? 1080
   1440 ? 1080
  1280 ? 720   720 ? 480   720 ? 576
  Aspect Ratio   16:9   16:9   4:3, 16:9   4:3, 16:9
  Compression Method
MPEG-4 AVC/H.264
  Sampling Frequency
   for Luminance Signal
  74.25MHz
   55.7MHz
  74.25MHz   13.5MHz   13.5MHz
  Sampling Format
4:2:0
  Quantization Bit Rate
8bits (Luminance / Chrominance)
AUDIO   Compression Method Dolby Digital (AC-3) Linear PCM
  Bit Rate
   after Compression
64 - 640 kbps 1.5Mbps (2 channels)
  Audio Mode 1 - 5.1 channel 1 - 7.1 channel
  System
MPEG-2 Transport Stream
  System Bit Rate
up to 18Mbps

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