Body: <p>I have never had success in saving file with same quality after editing. Either it was much bigger, or quality was worse (square blocks etc). 
  I thought MediaInfo program would help, i used to check bitrate of the video, frame rate, codec and make a similar (or close to it) preset in vegas. Never worked.
  What i have been using as a solution all these years: save video with high quality, then upload to YouTube and then download from there. 
  What are the key characteristics of the source video file i have to check in order to save my editing with the same quality? Maybe there are some good info sources in the internet.</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-04-28T14:38:56.083Z
Comments.Text: You need to tell us what codec you are using to save. Sounds like you are using a lossy codec, which, as the name implies, involves some loss of quality
Comments.UserDisplayName: stib
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-05-01T04:35:49.333Z
Comments.Text: @stib i usually use H.264. Is it not possible to detect the codec, source video was made with?
Comments.UserDisplayName: tegowai
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-05-01T07:01:17.207Z
Comments.Text: The codec the source video is made with is irrelevant. Once it's opened in the editor it has been decoded to a raster (aka the raw pixels in your video). It then gets re-encoded when you export. Encoding can be lossy for smaller file sizes, or lossless for large file sizes but original quality.
Comments.UserDisplayName: stib
Tags: <video-quality><codec>
Title: Save video with the exact quality of the source file
UserDisplayName: tegowai
ThreadText: # Save video with the exact quality of the source file
  
  (Asked by: username_0 on 2020-04-26)
  
  I have never had success in saving file with same quality after editing. Either it was much bigger, or quality was worse (square blocks etc).
  I thought MediaInfo program would help, i used to check bitrate of the video, frame rate, codec and make a similar (or close to it) preset in vegas. Never worked.
  What i have been using as a solution all these years: save video with high quality, then upload to YouTube and then download from there.
  What are the key characteristics of the source video file i have to check in order to save my editing with the same quality? Maybe there are some good info sources in the internet.
  
  **Tags:** video-quality, codec
  
  > **Comments:**
  > **username_1**: You need to tell us what codec you are using to save. Sounds like you are using a lossy codec, which, as the name implies, involves some loss of quality  
  > **username_0**: @username_1 i usually use H.264. Is it not possible to detect the codec, source video was made with?  
  > **username_1**: The codec the source video is made with is irrelevant. Once it's opened in the editor it has been decoded to a raster (aka the raw pixels in your video). It then gets re-encoded when you export. Encoding can be lossy for smaller file sizes, or lossless for large file sizes but original quality.  
  
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  ## 0 answers
  
  