Are they flac rips of the same stream or a different recording?
Because a flac rip of a lossy stream doesn't make much sense.
not true. a flac recording of the stream, whether the steam is lossy or not, would provide a true copy of what the stream sounded like. an mp3 rip needs to be re-compressed after it is recorded.
another way of looking at it: the stream will typically be recorded as a lossless WAV (or AU, or whatever) and then will be encoded as a flac or a mp3. flac is still the superior choice.
Yeah, I guess that not encoding to mp3 woldn't degrade the sound more. Just meant that you can't get rid of the initial lossiness by encoding to flac.
Thanks for the links LGM!