I would be careful!  They have re-designed winamp a few times after version 
5.20, and the library feature has become problematic for screen readers.  I 
also found very slow loading of audio files, but only when I opened and 
closed winamp with out re-booting.  The only solution I found to work here, 
was to go back to winamp 5.13.  Now files come up fast again.
Newer isn't always better.