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  1. Member coody's Avatar
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    Is the AVCHD encoding format same as the H.264 encoding format on the blu-ray disc or they are different encoding formats?
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  2. h.264 is mpeg4 part 10 , a large specification . It includes everyhting from baseline, low quality profiles suitable for devices and ipods, to even much higher quality than blu-ray. AVCHD uses a subset of that h.264 specification with restrictions .

    http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC

    Blu-ray can use h.264, or VC-1 or MPEG2 compression , and it's h.264 form uses a subset of the broader h.264 specification as well . You can have h.264 video that is unrestricted or has higher specifications that those limits imposed on by blu-ray compatible video

    When blu-ray disc is using h.264 compression, it has fewer restrictions in terms of bitrate compared to AVCHD , so it has potential for better quality . You can think of blu-ray as a "big brother" to AVCHD
    Last edited by poisondeathray; 28th Aug 2010 at 16:14.
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  3. Member coody's Avatar
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    No doubt the blu-ray is better such as high data capacity, compatible. However, the blu-ray needs blu-ray burner and blu-ray disc that is more expensive than the SD burner and DVD disc. Since the AVCHD disc has no difference from the blu-ray in the video quality, should we copy the AVCH disc instead of blu-ray disc until the blu-ray burner becomes a standard device in the most of the PCs or the blu-ray still has some other benefits?
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  4. Originally Posted by coody View Post
    Since the AVCHD disc has no difference from the blu-ray in the video quality
    If you mean the same video put on a DVD5 vs. the same video put on BD25 , then yes the quality would be the same. But if you re-encode or edit a project, the BD25 media will allow for higher bitrates (up to 40Mbps peak) , where as DVD5 media you can only safely go to ~15Mbps

    should we copy the AVCH disc instead of blu-ray disc until the blu-ray burner becomes a standard device in the most of the PCs or the blu-ray still has some other benefits?
    If you're not editing, just copying the streams from your AVCHD camcorder as is , then it makes no difference (except capacity) .

    Another option to consider is to store them on HDD which have come down a lot in price. Many people use media boxes like WDTV, or Asus OPlay (many others) to play their content which can read directly from HDD via usb. Some even have network capability
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