=== Backup WADs ===
Format used by [[content.bin]] files to store content data from a
title copied or transferred to the SD card, which get saved to <code>/private/wii/title/<low_tid_ascii>/content.bin</code>.
Also used by downloadable content stored in the SD card, which gets saved to <code>/private/wii/data/<low_tid_ascii>/<index>.bin</code> - in this context, <code><index></code> represents a specific content index value from a TMD content record, expressed as a 3-digit number in base 10 notation (e.g. <code>000.bin</code>).
[[Savegame Files|Savegames]] use the same exact header, albeit with different fields filled and with an entirely different structure for the rest of the file.
In a hex editor, the beginning of any backup WAD will be <code>00 00 00 70 42 6B 00 01</code>. This can be useful to extract an embedded backup WAD from a bigger file (such as [[content.bin]] files).