In revision 7334:

  # Skip the next two bytes 	                 
  read($fh, $buffer, 2) or return -1; 	                 

was changed to 

  # Skip the next three bytes - major & minor version number.
  read($fh, $buffer, 3) or return -1;

this has broken identification of many flac files. There are still two version bytes, or the specs have mystically changed:-)

Kari