Just to clarify (and yes, I know we're way off in left field here....) the warning I was speaking of is thrown by the qw() code whenever it gets passed a comma (or #). From perlop:

qw/STRING/
...
A common mistake is to try to separate the words with comma or to put comments into a multi-line "qw"-string. For this reason, the "use warnings" pragma and the -w switch (that is, the "$^W" variable) produces warnings if the STRING contains the "," or the "#" character.

% perl -we 'qw(@song_titles, @song_files)'
Possible attempt to separate words with commas at -e line 1.
 [snip void context errors]
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On a side note, I should have realized that you just misread the qw. A quick /msg would have probably been a better response than the node I posted.... ;-)

-Blake