The official double-blind 8-bit listening test

The samples have been compiled. They will be a very specific type of
music, early 8-bit mono tracks utilizing square/sawtooth waves for
melody, triangle for bass and white noise for percussion, with a
duration of 10 - 50 seconds. They'll be encoded with different codecs
at various bitrates, decoded to raw waveform and packed in a RAR
archive with a copy of the original, uncompressed samples. Get it
here: http://sharebee.com/d695aaed

Once you acquire the wavs, you will see every original song with a
name and its derivatives will have a number appended. You will compare
each to the original and write down how you perceive the quality, in
the following scale:

5 - Derivative sounds exactly like the original. No noticeable
artifacts.
4 - Minor artifacts and audible defects. Good quality overall.
3 - Considerable defects. Sounds somewhat flawed compared to original.
2 - Low quality. Audio artifacts very prominent.
1 - Extremely shitty quality, sounds like the song is playing from the
bottom of a garbage can.
Less than 1 - Barely recognizable or not recognizable at all.

You may use half-points like 4.5, 3.5 if you feel your perception is
in-between some of 'em, like if you don't hear flaws but the audio
"feels" different in a way you can't explain you can give it a 4.9,
4.8 etc. and optionally, you can follow your rating with an
explanation of what you noticed. When you're done, e-mail me the text
file, i repeat, EMAIL, don't post it here. The results will be posted
publicly when the test's done.

Use good quality headphones, but if you believe your high-end speakers
do the job the same if not better, go ahead. Don't use any software/
hardware tweaks/mixers that interpolate, reverb or alter the original
signal in any way.

Don't participate if you're on hearing aid, are old as fuck and have
crappy ears, an autistic twat, not human (I don't work with dogs yo)
or believe you have any significant problems hearing. Also, don't do
it while you're tweaked off your ass, woke up from a hangover, sleep-
deprived or simply distracted by the horn of the train. We want a
neurotypical point of view here. Oh and, don't do the whole test in
one sitting. You may become too accustomed to the type of music and
develop those weird resonances, placebo effects etc. Do a couple
dozen, then continue later, or on another day. DO IT WHEN YOU REALLY
FEEL LIKE DOING IT, not when you've got 10 spare minutes before you
gotta take your antidepressants.

And lastly, don't try to bullshit me by lying or cheating on the test,
'cuz I'll know. You are not to do ANYTHING with the .wavs except open
them with your media player and listen. No analyzing with an audio
engineering app to determine the level of compression (if that's even
possible) -- but I doubt any of you got no life that you get kicks
outta spending hours trying to deceive some anonymous named
"Industrial One" on the internet.

Thanks.