Bundle or Chained products?

Hi, my client will be selling Packs, each of which will consist of the downloadable Audio Album (5-6 songs), a downloadable pdf book and access to videos on Youtube.

What is the most appropriate plugin to use – Bundled products or Chained products? Customers won’t be able to choose any variations and these products (albums/singbooks/ will not be sold individually, only as packs

Please advise
ELina