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QAR is a container format used in MGS4 for storing and indexing TXN files.

Format Specifications

Metal Gear Solid 4

Array {X} TXN
uint16 {2} Number of TXNs
uint16 {2} Null Bytes
For each TXN
uint32 {4} Filetype ID (0x03 for TXN) Bitwise AND with Hashed TXN filename
uint32 {4} Txn Size
For each TXN
char {x} Filename
byte {1} null byte filename terminator
File end
bytes {x} null padding 4-byte alignment (file position)
uint32 {4} Index offset