Does quality ever deteriorate when encoding a film that requires no compression?

Discussion in 'DVDR' started by pearce88, Dec 4, 2009.

  1. pearce88

    pearce88 Member

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    Hi all.

    I'm curious to know, if I were to encode a film that required absolutley no compression to fit to dvd5 (Lets say its 4.1 gb exactly) and I put the output file to the desktop. I then encoded those output files again, and again, and again. Even though their is no compression required, would the quality of the film ever deteriorate from so much encoding?
    I heard that its bad to encode something more than once, but im curious to know.
    Does the quality ever get affected?

    Thankyou.
     
  2. attar

    attar Senior member

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    "Encoding" implies conversion to another format, or keeping the same format but perhaps changing the resolution or colour qualities of the video - and that requires compression.
    If you were to continually recompress the same video file (not making any changes as such), the quality would suffer.
    Simply copying the same file over and over would not cause a loss of quality - unless some of the ones and zeroes were lost.
     

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