sub check_md5 {
    my( $path, $item ) = @_;

 # process the MD5 of 'file'
 # open 'file.md5'
 # hold its content in memory
 # compare to the processed MD5 of 'file'
 # if it matches move to the next file and corresponding .md5 file
 # if there is an error, send it to the logmd5 subroutine for logging

};