I downloaded some audio files with flac extension. I only had cheap earphones at that time and I couldn't really figure out whether it is real flac or just fake. Later when I played it through my friend's hifi system, It was totally unbearable. I guess, it was converted to flac from a lossy format. I don't have a clue on why someone would do this.
Is there a way to identify files that are converted from lossy to lossless formats without hearing it through a hifi system?
I checked the details of the file in windows explorer but no luck.
Thanks for helping.