USM Video

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USM

• Format Type : Video
  
• Endian Order : Big Endian
  
• Signature : CRID
  

Format Specifications

// USM video file format

// big endian

num_of_chunks *
{
   4 bytes (char) - chunk signature  // "CRID" or "@SFV" or "@SFA"
   4 bytes (uint32) - chunk size

   chunk_data
   {
      1 byte - unknown  // always 0?
      1 byte (uint8) - payload offset
      2 bytes (uint16) - padding size
      1 byte (uint8) - channel number
      2 bytes - unknown
      1 byte (uint8) - payload type  // 0 - stream (audio/video binary data)
                                     // 1 - header (media metadata about a video or audio track)
                                     // 2 - section end (info about end of the chunk data)
                                     // 3 - seek (data about the seek positions of a video track)

      4 bytes (uint32) - frame time // used for "stream" chunks, 0 for other chunks

      4 bytes (uint32) - frame rate // for audio chunk always 2997
                                    // for stream chunk 100*stream_rate
                                    // for other chunks always 30
      8 bytes - unknown
      x bytes - payload  // e.g. "@UTF" chunk
      x bytes - padding
   } 
}

MultiEx BMS Script

Not written yet.

Notes and Comments

• Some *.USM files are encrypted using a 8-byte XOR key (like in HCA files)
• USM keys are often the same as HCA keys (not always)
• Alternative names for USM files are Sofdec2 or CRI Movie 2.
• Older version of this format is SFD Video.

Games

List of games using this file format:

• 22/7 Ongaku no Jikan (Android) (*.USM) (encrypted)
• Ares Chronicles (PC) (*.USM)
• Batman: Arkham Knight
• Crysis 2
• Deus EX Human Revolution
• Digimon Story: Cyber Sleuth (PC)
• Genshin Impact (*.USM) (encrypted)
• Madoka Magica Pachislot (*.USM)
• NEO: The World Ends with You (*.USM) (encrypted, more info here)
• Okami HD (*.USM) (encrypted, more info here and here and here)
• Orcs must die!
• Persona 5 Royal (*.USM) (encrypted, more info here)
• Princess Connect Re:Dive (Android) (*.USM) (no encryption)
• Spider-Man: Shattered Dimensions (Xbox 360)
• Tekken 7 (PC) (*.USM) (encrypted, more info here)
• Touhou Cannonball (*.MV) (encrypted?)
• THE ALCHEMIST CODE (encrypted)
• The Witcher 2 (PC) (*.USM)
• The Witcher 3: Wild Hunt (PC) (*.USM)
• Wonder Gravity (Android)

Compatible Programs

• Scaleform_VideoEncoder.zip / mirror1
• VGMToolbox
• FFmpeg
• CRID Demux Tool (CRID USM extractor / crid_mod) (+ source code) / mirror1 / mirror2
• UsmToolkit
• UsmDemuxer
• utf_tab (+ source code)
• WannaCRI (+ source code)

USM Keys

Keys listed below are shared for educational purposes only.
Please don't use them to steal assets from games.

Game Title	Key (HEX)	Key (ASCII)
22/7 Ongaku no Jikan (Android)	00000000  013416BA	n/a
Ares Chronicles (PC)	unknown	unknown
Digimon Story: Cyber Sleuth (PC)	283553DC  E3FD5FB9	n/a
Hortensia Saga (Android)	00000000  01395C51	n/a
NEO: The World Ends With You (PC)	00BD86C0  EE8C7342	n/a
NEO: The World Ends With You v1.01 (PC)	unknown	n/a
Okami HD (PC)	006B6172  61616765	karaage
Persona 5 Royal (CN)	00000000  01C87822	n/a
Persona 5 Royal (JP)	00000000  00A67D71	n/a
Persona 5 Royal (EFIGS)	00000000  035B6784	n/a
Tekken 7 (PC)	00A1CACC  C4CF453D	n/a
THE ALCHEMIST CODE (Android)	00000497  222AAA84	n/a
Wonder Gravity (Android)	006CCC56  9EB1668D	n/a

Examples

• Demuxing USM files from "Okami HD" (PC version) using crid_mod

crid_mod.exe -b 006B6172 -a 61616765 -v -x -i prologue.usm

• Demuxing USM files from "Tekken 7" (PC version) using crid_mod

crid_mod.exe -b 00A1CACC -a C4CF453D -v -x -i MainMenu_loop.usm

• Demuxing USM files from "Persona 5 Royal (EFIGS)" using crid_mod

crid_mod.exe -b 00000000 -a 035B6784 -v -x -i mov000.usm

Getting keys from Unity games

(This method doesn't always work - keep that in mind)
1. Download AssetStudio. Load whole "_Data" folder in AssetStudio.
2. Find CriWareInitializer MonoBehaviour on assets list in AssetStudio window.
3. Go to "decrypterConfig" section in the CriWareInitializer asset and look for "key" value there.

See Also

• USM description
• USM modding
• USM file format
• Recovering USM keys - Tutorial
• Getting keys from Unity games - part 1 (chineese tutorial)
• Getting keys from Unity games - part 2 (chineese tutorial)
• HCA Audio file format
• hca_keys.h
• adx_keys.h