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

Number of listeners: 13
Critical significance:  0.05
Tukey's HSD:   0.730

Means:

LAME_130 CT_v2    Nero_v2  Nero_v1  CT_v1    3gpp_v1  iTunes_L 
  4.76     3.75     3.54     3.45     3.33     2.75     1.25   

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

         CT_v2    Nero_v2  Nero_v1  CT_v1    3gpp_v1  iTunes_L 
LAME_130   1.008*   1.223*   1.315*   1.431*   2.008*   3.508* 
CT_v2               0.215    0.308    0.423    1.000*   2.500* 
Nero_v2                      0.092    0.208    0.785*   2.285* 
Nero_v1                               0.115    0.692    2.192* 
CT_v1                                          0.577    2.077* 
3gpp_v1                                                 1.500* 
-----------------------------------------------------------------------

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