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WiiU Title Formats

Overview

WiiU titles come in a variety of formats, this is a list of most common to least common formats and its pros and cons

RAW
  • Otherwise known as Loadiine, Unpacked or CCM (Code Content Meta)
  • Contains the literal raw files for the game
  • Pros
    • Excellent for Cemu and other Emulators
    • Handy for direct file modding or investigation
  • Cons
    • Due to how Updates are stored in a WUP, some files are not unpacked. This is only important if you are re-packing a RAW format update into a WUP
WUP
  • This is a WiiU Package
  • Known within this Wiki as "Encrypted NUS Content"
  • The content files are encrypted with AES-CBC (128 bit)
    • [Details about the encryption here]
  • Files included in a WUP are
    • tmd or title.tmd
      • This is the titles metadata
    • cetk or title.tik
      • This is the installation "ticket". it also contains the encrypted "title key" for the title
    • cetk or title.cert
      • This is the certificate
    • *.h3
      • These contain hashes for the app files
      • They only exist when the app file is over a certain size.
      • They share filenames with the app files
    • (no extension) or *.app
      • These files contain the raw files in encrypted binary
    • Pros
      • Probably the best archival format due to it being installable to WiiUs AND being easily unpacked into RAW files
    • Cons
      • Due to the encryption it does not compress well
WUD
  • This is a WiiU Disc image
  • It is a 1:1 disc dump of the game
  • Will be about 25GB in size
WUX
  • A compressed WUD
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