old_contents: # VOD metadata file generator - md5_checksum sub-module
  # Copyright 2013 Bo Bayles (bbayles@gmail.com)
  # See README for more information
  # See LICENSE for license
  import hashlib
  
  def md5_checksum(file_path, chunk_bytes=163840):
    """Return the MD5 checksum (hex digest) of the file"""
    
    with open(file_path, "rb") as infile:
      checksum = hashlib.md5()
      while 1:
        data = infile.read(chunk_bytes)
        if not data:
          break
        checksum.update(data)
    
    return checksum.hexdigest()
new_contents: # VOD metadata file generator - md5_checksum sub-module
  # Copyright 2013 Bo Bayles (bbayles@gmail.com)
  # See README for more information
  # See LICENSE for license
  import hashlib
  
  def md5_checksum(file_path, chunk_bytes=4194304):
    """Return the MD5 checksum (hex digest) of the file"""
    
    with open(file_path, "rb") as infile:
      checksum = hashlib.md5()
      while 1:
        data = infile.read(chunk_bytes)
        if not data:
          break
        checksum.update(data)
    
    return checksum.hexdigest()
subject: Switch default read size to 4 MiB