Searching CPAN for MP3 reveals a number of candidates.

For example: 

  use MP3::Info;

  my $mp3 = MP3::Info->new( $my_file_name );
  print $mp3->time, $mp3->title;

[download]

In reply to Re: slightly OT - How can I calculate the length of an MP3 file by simonm
in thread slightly OT - How can I calculate the length of an MP3 file by gregor42

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