What video format is avchd

avchd is a high-definition video camera format jointly launched by Panasonic Industrial Co., Ltd. and Sony Corporation. The format combines the existing DVD architecture (i.e. 8cm DVD disc and red light) with an MPEG-4AVC-based /H.264 advanced compression technology codec integrated together.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

AVCHD format is a high-definition video camera format.

Panasonic Electric Industrial Co., Ltd. and Sony Corporation jointly launched a new high-definition video camera format - AVCHD, which combines the existing DVD architecture (i.e. 8cm DVD disc and red light) with an MPEG-based 4AVC/H.264 advanced compression technology codecs are integrated together. H.264 is a compression technology widely used in high-definition DVD and next-generation Blu-ray Disc formats. Because the AVCHD format is only used for user-generated video programs, the developers of AVCHD avoid complex copyright protection issues.

AVCHD integrates Mini DV tape-based HDV, which appeared in 2003, and a new method of storing video content on SD cards. AVCHD builds a bridge between traditional DVD formats and H.264 compression technology. The latter's compression efficiency is said to be twice as high as the MPEG-2 standard, and the video signal quality is also substantially improved.

Compatibility:

The AVCHD format enables HD camera manufacturers to make their products compatible with all 8cm DVD disc formats, including DVD-RAM, DVD-R, DVD-RW, DVD RW and DVD R . But today's DVD players cannot play AVCHD discs, and AVCHD supporters have no plans to launch a recording or player platform specifically for the format. If you want to enjoy the programs recorded by the AVCHD camera, you must export them directly from the camera through a transmission line, or use special software to export from a PC.

Panasonic has revealed its development intentions: the AVCHD format will be used not only for camcorders based on the DVD format, but also for camcorders using SD cards. In this regard, analyst Asakura pointed out: "Panasonic did not adopt the HDV1080i format; instead, the company developed a dedicated high-definition camera that uses SD cards as the recording medium. Panasonic uses SD cards to store AVCHD format content, which is far better than its 8cm DVD camera The plan is more eye-catching."

The reason for this is because the AVCHD format does not support SD cards. In fact, the two advocates of the new format were bitter rivals in the flash memory card market, with Sony supporting Memory Sticks and Panasonic supporting SD cards.

In order to enable the AVCHD format to support SD cards, Panasonic plans to develop an interface and a file system, and has begun work on upgrading an SD card format to meet the data rate and capacity requirements of AVCHD. .

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