An audio container format developed by Electronic Arts and used exclusively by Burnout's PlayStation Portable releases. It uses the extension .SDT.

Layout

SDT

Offset	Length	Type	Description	Details
`0x00`	`0x04`	UInt32	File magic (`BNKl`/`0x424E4B6C`)
`0x04`	`0x01`	UInt32	Version number
`0x06`	`0x01`	UInt32	Number of sounds in archive
`0x08`	`0x04`	UInt32	Header size in bytes/start offset of 1st sound in archive
`0x0C`	`0x04`	UInt32	Archive size in bytes (minus header)
`0x14`	`0x04`	UInt32	PT headers pointer table size in bytes	The table itself also starts at this offset.

PT Header (WIP)

SDT contains metadata headers, each 0x20 in length, for each sound in the archive. The metadata in question consists of a given sound's sample rate, compression, start offset, etc.

Offset	Length	Type	Description	Details
`0x00`	`0x04`	UInt32	Header ID (`PT/0/0`/`0x50540A00`)
`0x18`	`0x04`	UInt32	Audio start offset	Uses big-endian byte order.