Lossless Audio Family, Take 2

Hi,
	I do not know why lossless audio compressors are so popular
suddenly. But if the technology is there, I suppose we need to support it.

	I reworked the lossless audio sample collection:

  http://www.mplayerhq.hu/MPlayer/samples/A-codecs/lossless/

This time, I have taken a proper music sample ("luckynight") and
compressed it with 8 different lossless audio encoders:

.ape:  Monkey's Audio
      http://www.monkeysaudio.com/
.flac: Free Lossless Audio Compression
      http://flac.sourceforge.net/
.m4a:  Apple Lossless Audio Compression, 'alac' in QT mov/mp4 container
      http://www.apple.com/quicktime/
.ofr:  OptimFROG
      http://losslessaudiocompression.com/
.rmvb: RealAudio Lossless, 'ralf', extension indicates RealMedia VBR
      http://www.real.com/
.tta:  TTA Free Lossless Audio Codec
      http://tta.iszf.irk.ru/
.wma:  Windows Media Lossless Audio (format 0x16?) in MS ASF container
      http://www.microsoft.com/windows/windowsmedia/default.aspx
.wv    WavPack
      http://www.wavpack.com/

And the original minute-long sample ripped from a CD is the .wav.bz2 file.
OptimFROG performed the best on this particular sample, but who's keeping
score? They all seemed to perform similarly.

	Also, all of the files contain as much metadata as the file format
will allow in order to facilitate implementation: Title, artist, album,
genre, track number, year, copyright, comment, all of that stuff.

	Hope this helps, and let me know of any lossless compressors I
missed. I know there is MLP used on DVD-audio but I have no means of
compressing into that format.

--
	-Mike Melanson


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