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