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Obtaining the Sonic CD Datapack

The datapack for Sonic CD is required for both playing and modding the game.

Prerequisites

  • Steam installed and running
  • Sonic CD installed from Steam

Obtaining the Datapack

Open ZArchiver, then keep pressing .. until you reach the root / directory.

Root directory

Navigate to /data/app/, then find and open the folder attributed to Sonic CD.

data directory app directory

Open the folder beginning with com.sega.soniccd.classic, then you will find a file named split_packs.apk. Tap the file and then select View in the menu that appears.

Sonic CD directory com.sega.soniccd.classic directory split_packs.apk menu

Open the assets folder, then you will find a file named Data.rsdk.xmf. Copy the file into a directory of your choice and then rename the file to Data.rsdk.

split_packs.apk assets directory

Open Filza, then tap the Favorites icon at the bottom. In the menu that appears, tap Apps manager.

Filza favorites menu

A list of your installed apps will appear. Tap the info icon next to Sonic CD, then choose Bundle.

Apps manager Info menu

Tap Sonic CD iOS.app, then you should see the datapack Data.rsdk.

Bundle directory .app directory

To share one of the files with another app, tap the file, open the Hex Editor, then tap the Share button in the top right corner. When you're finished, tap Done in the Hex Editor to close it.

Open with ... Hex editor Share menu

Open your Steam library, then right click Sonic Origins and click Manage > Browse local files.

Steam library

In the File Explorer window that appears, open image/x64/raw/retro. The datapack for Sonic CD is SonicCDu.rsdk.

Game directory

Open your Epic Games library, then right click Sonic Origins and click Manage. In the menu that appears, click the Open Install Location button next to the Uninstall button.

TODO: screenshot of the above

In the File Explorer window that appears, open image/x64/raw/retro. The datapack for Sonic CD is SonicCDu.rsdk.

Game directory

Open your Steam library, then right click Sonic CD and click Manage > Browse local files.

Steam library

In the File Explorer window that appears, the datapack is Data.rsdk.

Game directory