Changes

.[[CIA]] - CTR Importable Archive - This format allows the installation titles to the 3DS. CIA files can compile a CXI for installation to either the SDMC or CTR NAND. CIA files can also compile .SRL files (format for DS(i) executable images) for installation to the TWL NAND of the 3DS.

.[[CIA]] - CTR Importable Archive - This format allows the installation titles to the 3DS. CIA files can compile a CXI for installation to either the SDMC or CTR NAND. CIA files can also compile .SRL files (format for DS(i) executable images) for installation to the TWL NAND of the 3DS.

.[[TMD]] - Title Metadata - The format is used with installed/installable titles. Notably they are found in .[[CIA]] files (plain text), on the [[SD Filesystem#title|SD card]] (encrypted), NAND and on Nintendo's CDN (plain text).

.[[TMD]] - Title Metadata - The format is used with installed/installable titles. Notably they are found in .[[CIA]] files (plain text), on the [[SD Filesystem#title|SD card]] (encrypted), NAND (encrypted) and on Nintendo's CDN (plain text).

.CDI - CTR Development Image - CDI files are system processes which other types of applications depend on for access to various other lower level functions. CDI are normally the same titles as listed in a CXI header's dependency list, they are just compiled to a different format.  The difference is that CDI is used for a different (test) environment. They're loaded into hardware debugger's memory, along with the 2 cores in order to execute.  

.CDI - CTR Development Image - CDI files are system processes which other types of applications depend on for access to various other lower level functions. CDI are normally the same titles as listed in a CXI header's dependency list, they are just compiled to a different format.  The difference is that CDI is used for a different (test) environment. They're loaded into hardware debugger's memory, along with the 2 cores in order to execute.