Asobo Studio DPC DPS

DPC, DPS

• Format Type : Archive
  
• Endian Order : Little Endian
  

Format Specifications

Version 1.19

// Sitting Ducks (PS2)
// DPS archive file format

//little endian


//Note: padding is set to multiplication of 1024 bytes.


//header (2048 bytes)
48 bytes (char) - version clob // "v1.19 - Asobo Studio - Internal Cross Technology"
1 byte - null
207 bytes - padding // "\xCD\xCD\xCD\xCD..."
4 bytes (uint32) - next folder offset - 2048
4 bytes (uint32) - unknown // always "214"
4 bytes (uint32) - unknown // always "74"
4 bytes (uint32) - unknown // always "59"
1776 bytes - padding // "\xCD\xCD\xCD\xCD..."



//data
num_of_folders *
{
   4 bytes (uint32) - number of files in folder
   num_of_files *
   {
      4 bytes (uint32) - file size + 4
      x bytes - file data
   }
   x bytes - padding // "\xCD\xCD\xCD\xCD..."
}

Version 1.81

// CT Special Forces: Fire for effect (PC)
// DPC archive file format

// Archives are compressesed
// with custom compression algorithm


//header
256 bytes - version clob // "v1.81 - Asobo Studio - Internal Cross Technology"
4 bytes - number of files
24 bytes - unknown


//file info (24 bytes per entry)
num_of_files *
{
  4 bytes - dummy
  4 bytes - xsize / uncompressed size
  4 bytes - size  / compressed size
  4 bytes - unknwon
  4 bytes - some CRC?
  4 bytes - unknown
}


//file data
num_of_files *
{
  x bytes - file data
  x bytes - padding
}

MultiEx BMS Script

IDString 0 "v1.381.67.09 - Asobo Studio - Internal Cross Technology" ;
GoTo 260 0 ;
Get FileNum Long 0 ;
GoTo 284 0 ;
Set FNS String "file" ;
Set EXT String ".bin" ;
Set OFF Long 2048 ;
For T = 1 To FileNum ;
Get U1 Long 0 ;
Get U2 Long 0 ;
Get PSize Long 0 ;
Get RSize Long 0 ;
Get U3 Long 0 ;
Get U4 Long 0 ;
Set FN String FNS ;
String FN += T ;
String FN += EXT ;
Log FN OFF RSize 0 0 ;
Math OFF += PSize ;
Next T ;

QuickBMS Script

• asobo_ratatouille.bms
• ratatouille_dpc.bms

Notes and Comments

• Archives are compressesed with custom compression algorithm.
• File format is shared with some other "Asobo Studio" games.
• Some games may use extension *.DPS instead of *.DPC.

Other Games

List of other games sharing same file format:

Release Year	Game Title	Platform	Archive Version	Extension
2004	Sitting Ducks	PS2	v1.19	.*DPS
xxx	Ratatouille	?	?	?
2004	CT Special Forces: Fire for effect (Nemesis Strike)	PC	v1.81	.*DPC

Compatible Programs

Asobo DPC DPS Tool