FRIEDMAN version 1.24 (Jan 17, 2002) http://ff123.net/
Tukey HSD analysis

Number of listeners: 12
Critical significance:  0.05
Tukey's HSD:   0.795

Means:

LAME_130 Nero_v2  CT_v2    Nero_v1  CT_v1    3gpp_v1  iTunes_L 
  4.08     3.35     3.20     3.15     3.00     2.53     1.58   

-------------------------- Difference Matrix --------------------------

         Nero_v2  CT_v2    Nero_v1  CT_v1    3gpp_v1  iTunes_L 
LAME_130   0.725    0.875*   0.925*   1.075*   1.542*   2.500* 
Nero_v2             0.150    0.200    0.350    0.817*   1.775* 
CT_v2                        0.050    0.200    0.667    1.625* 
Nero_v1                               0.150    0.617    1.575* 
CT_v1                                          0.467    1.425* 
3gpp_v1                                                 0.958* 
-----------------------------------------------------------------------

LAME_130 is better than CT_v2, Nero_v1, CT_v1, 3gpp_v1, iTunes_LC
Nero_v2 is better than 3gpp_v1, iTunes_LC
CT_v2 is better than iTunes_LC
Nero_v1 is better than iTunes_LC
CT_v1 is better than iTunes_LC
3gpp_v1 is better than iTunes_LC