Answers.Body: <p>You focus on quality in your question, so the answer is clear: ProRes (in various flavors) offers superior quality. There are other reasons you might choose AVCHD, but they don't relate to quality.</p>
  
  <p>AVCHD is generally speaking a distribution format, while ProRes is more an acquisition and intermediate format (it uses all I-frames). ProRes also comes in a 4:2:2 /10 bit flavor, where AVCHD is 4:2:0 / 8 bit.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-06-05T14:47:38.690Z
Answers.Text: To answer that you'd need to flesh out your question. What equipment, processes, tools etc are you using? Is this about acquisition, post / effects, distribution, or what? There's no one perfect tool for everything, and on top of it all there's the budget.
Answers.UserDisplayName: Jim Mack
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Answers.CreationDate: 2015-06-05T14:10:42.000Z
Answers.LastActivityDate: 2015-06-05T14:10:42.000Z
Answers.UserDisplayName: Jim Mack
Answers.Body: <p><a href="https://en.wikipedia.org/wiki/AVCHD" rel="nofollow">AVCHD</a> appears to just be h.264 with some constraints.  Mainly on framerate and resolution.  It looks from the wikipedia page that early versions mostly favoured interlaced encoding, unless you drop down to 720p.</p>
  
  <p>The wiki page doesn't say, but I assume it's H.264 4:2:0 8-bit, not Hi10 profile or something.  I also have no idea what quality the hardware encoders in camcorders usually manage.  If you're generating AVCHD video on a computer, you could do it with <a href="https://en.wikipedia.org/wiki/X264" rel="nofollow">x264</a> and get better quality per bitrate than ProRes.  (if 4:2:0 8bit is sufficient).</p>
  
  <p>This might be a poor choice if you need fast random access to non-keyframes, since a lot of the compression advantage of h.264 is from inter-frame compression.  If you're just going to decode it in-order, then it's not an issue.</p>
  
  <p><strong>Note:</strong> AVC is h.264. (just like HEVC is another name for h.265). As always, a bad h.264 encoder can be standards-compliant but make your video look like crap, which is why I always make a point of recommending x264 for encoding.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-06-06T12:47:30.427Z
Answers.Text: _h264 with some constraints_ - interesting. As always, thanks for your answer.
Answers.UserDisplayName: p2or
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-06-07T21:49:41.993Z
Answers.Text: BTW, AVC *is* h.264.  (just like HEVC is another name for h.265).  As always, a bad h.264 encoder can be standards-compliant but make your video look like crap, which is why I always make a point of recommending x264 for encoding.
Answers.UserDisplayName: Peter Cordes
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Answers.CreationDate: 2015-06-05T19:06:14.810Z
Answers.LastActivityDate: 2015-06-08T08:01:19.183Z
Answers.LastEditDate: 2015-06-08T08:01:19.183Z
Answers.UserDisplayName: Peter Cordes
Body: <p>Depending on the project and the camera of course I often have to work with ProRes or AVCHD codecs without any thoughts. I assume that the code and the compression algorithm certainly is very different. Therefore I would like to know <strong>what is the difference between AVCHD and ProRes in terms of quality for a solid workflow</strong>?</p>
  
Tags: <video-quality><codec><encoding>
Title: What is the difference between AVCHD and ProRes in terms of quality?
UserDisplayName: p2or
ThreadText: # What is the difference between AVCHD and ProRes in terms of quality?
  
  (Asked by: username_0 on 2015-06-05)
  
  Depending on the project and the camera of course I often have to work with ProRes or AVCHD codecs without any thoughts. I assume that the code and the compression algorithm certainly is very different. Therefore I would like to know **what is the difference between AVCHD and ProRes in terms of quality for a solid workflow**?
  
  **Tags:** video-quality, codec, encoding
  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_1 on 2015-06-05. Score: 1 | Accepted answer
  
  You focus on quality in your question, so the answer is clear: ProRes (in various flavors) offers superior quality. There are other reasons you might choose AVCHD, but they don't relate to quality.
  
  AVCHD is generally speaking a distribution format, while ProRes is more an acquisition and intermediate format (it uses all I-frames). ProRes also comes in a 4:2:2 /10 bit flavor, where AVCHD is 4:2:0 / 8 bit.
  
  > **Comments:**
  > **username_1**: To answer that you'd need to flesh out your question. What equipment, processes, tools etc are you using? Is this about acquisition, post / effects, distribution, or what? There's no one perfect tool for everything, and on top of it all there's the budget.  
  
  ---
  
  ### Answer by username_2 on 2015-06-05. Score: 1
  
  [AVCHD](https://en.wikipedia.org/wiki/AVCHD) appears to just be h.264 with some constraints. Mainly on framerate and resolution. It looks from the wikipedia page that early versions mostly favoured interlaced encoding, unless you drop down to 720p.
  
  The wiki page doesn't say, but I assume it's H.264 4:2:0 8-bit, not Hi10 profile or something. I also have no idea what quality the hardware encoders in camcorders usually manage. If you're generating AVCHD video on a computer, you could do it with [x264](https://en.wikipedia.org/wiki/X264) and get better quality per bitrate than ProRes. (if 4:2:0 8bit is sufficient).
  
  This might be a poor choice if you need fast random access to non-keyframes, since a lot of the compression advantage of h.264 is from inter-frame compression. If you're just going to decode it in-order, then it's not an issue.
  
  **Note:** AVC is h.264. (just like HEVC is another name for h.265). As always, a bad h.264 encoder can be standards-compliant but make your video look like crap, which is why I always make a point of recommending x264 for encoding.
  
  > **Comments:**
  > **username_0**: _h264 with some constraints_ - interesting. As always, thanks for your answer.  
  > **username_2**: BTW, AVC *is* h.264.  (just like HEVC is another name for h.265).  As always, a bad h.264 encoder can be standards-compliant but make your video look like crap, which is why I always make a point of recommending x264 for encoding.  
  
  ---
  
  