I'm sure that if you had downloaded and stored lossless file in your music library you would have thought that they are indeed lossless.
Sadly but true, this kind of misconception is false as there are chances that some of those music files that you had downloaded are 'fake' lossless.
Just some general FAQ's before we proceed with the tutorial.
How 'fake' lossless music is created
So there is this 'fake' lossless file, but how are they created? The answer is simple, which is by the means of upscalling a lossy mp3 files (could be varies in bitrate, even 128 kbps!). However, when played back using media player it will labelled as lossless or havinga bitrate highter than 320 kbps, which is the highest bitrate for mp3.
Why upload 'fake' lossless music
This might be done for the purpose of getting people to download it or generate high visitor counts for the site that shared these.
Where are these 'fake' lossless music can be found?
It varies. But they can be mostly found from forum sharing site, e.g. vnsharing.net or VeryCD.
How to early spot true or fake lossless music
In most, but not all cases of a true lossless music, the uploader will include the EAC (Exact Audio Copy) log file that include additional AccurateRip information, if the album is in the AccurateRip database. Missing this log file doesn't necessary means that the album is fake lossless though.
How to spot 'fake' lossless music
Since the perception of music hearing is subjective and varies from people to people. In times it might be hard to actually hear the difference between a lossy or lossless music, even for those with highly trained ears. This happens because of the improvement that had progressed in the lossy music codec and the high transparency rate that can be achieved.
An alternative would be using expensive and exotic audio equipment, including speakers, DAC (Digital Analog Converter), pre-amplifier, amplifier, etc.). This coupled with a high trained ears of an audiophile will surely spot the difference instantly. But seriously, how many of us can actually afford those kind of equipments.
And so comes the final solution, which is by the means of using software. If you are a foobar media player user, which is very popular among audiophiles), you could try out the following tools, fooaucdtect.