The AVCHD file is a recording file format introduced for saving high-definition(HD) videos to DVDs, hard disk drives, and memory cards. The AVCHD file format allows the high-definition digital video cameras to record an HD signal; using high-efficiency compression coding technology. To compress video; the MPEG-4 AVC/H.264 format has been adopted, and the Dolby Digital® is used to compress the audio data. Whereas, The MPEG-4 AVC/H.264 format is more efficient than the conventional image compressing format. Moreover, the 3D (MVC format) and 1080/60p(1080/50p) video formats have been added as an extension to the AVCHD file format for its version 2.0 (AVCHD 3D, AVCHD Progressive) format.
Please note that a device must be compatible with AVCHD V. 2.0 to handle AVCHD V. 2.0 related videos.
How to open AVCHD files?
If you are not being able to open the AVCHD file on your computer; there may be many causes. The most important cause is that AVCHD supported softwares are not installed on your device. In this case you need to see the following points as a guideline:
Install the well suited software to run the file.
If still you are facing difficulty to open the .avchd file; you must check the version of the software and see either that is supporting .avchd files or not. Some files can be supported by the old version and some by the latest one so, must check the details.
After installing the appropriate verion of software make sure that it is set as the default application to open AVCHD files.
Comparison between AVCHD and MP4 file formats
The Advanced Video Codec High Definition (AVCHD) file format is well suited for creating Blu-ray Disc® recordings and watching on an HDTV. Whereas, MP4 is much easier to play on portable devices and also simple in moving, copying and saving on the web.
Differences for both formats are given in the table below.
Image size (Aspect ratio)
1920 x 1080/60i, 50i (16:9) 1440 x 1080/60i, 50i (16:9)
1440 x 1080/30p (16:9) 1280 x 720/30p (16:9) 640 x 480/30p (4:3)
Audio channels / Sampled frequency
2 channels/48 kHz 5.1 channels/48 kHz
2 channels/48 kHz.
Compatible with the Blu-ray Disc format
Compatible with the Apple® QuickTime® format
Compatible with several recording media devices such as a hard
Compatible with various recording media and networks including the PlayStation® Video by the PlayStation Network
Compatible with xv.Color technology
Compatible with the Windows 7 operating system and above natively support MP4
Compatible with Windows® 7 operating system and above natively support AVCHD