Quote:
Originally Posted by ratinox
If it's digital to digital, like duping a CD to MD (MiniDisc) via TOSLink, with no analog conversion, then the copy should be 1:1 identical (less any SCMS stripping that might occur).
If copying requires decoding to analog TV signal and then digitizing this signal for recording then there will be some degradation depending on the quality of the digitizer and of the analog interconnects. Additional degradation will occur if lossy encodings are used -- same effect you get from re-encoding a JPEG as a JPEG.
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CD > MiniDisc > CD will result in a loss of data. Any stripping is not 1:1. You can even have a difference going from CD > CD unless you have the correct offset for the drive you are using.