Script to download all screencast files from elixirsips.com (an account is required)

scrap.rb

require 'rubygems'
require 'mechanize'

domain = 'https://elixirsips.dpdcart.com'
agent = Mechanize.new
agent.pluggable_parser.default = Mechanize::Download

folder = 'PATH/TO/FOLDER'

page = agent.get('https://elixirsips.dpdcart.com/subscriber/content')
pageform = page.form()

pageform.username = 'YOUR EMAIL'
pageform.password = 'YOUR PASSWORD'

page = agent.submit(pageform, pageform.buttons.first)

# sort by `older to newer` (i.e.: 001_, 002_, ...)
page = page.links_with(text: 'Read More').each.sort_by {|elem| elem.href}
page.each do |link|
  content_page = link.click
  content_page.links_with(href: /subscriber\/download.*/).each do |item|
    download_link = domain + item.href
    filename = File.join(folder, item.text)
    unless File.exist?(filename)
      puts "Downloading: #{item.text}"
      agent.get(download_link).save(filename)
    end
  end
end

Install mechanize with:
gem install mechanize