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It is possible to convert the wav-files without (!) any loss to ".flac" files (around 50 % less compare to ".wav" files) when opening in a shell. And back to ".wav" files of course. Please see the example below for further info.
On Mac OS X you can use the "Terminal" application and for a ".wav" file called "A.wav" use the following commands:- encoding: flac -8 /Volumes/"your harddrive"/A.wav
- decoding: flac -d /Volumes/"your harddrive"/A.flac
For further information read All about Cassette Tapes from 1979.pdf
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