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Data.bin Extraction/Data Folder Mode Tutorial - A Tutorial for Sonic Nexus.

Teaching Time!

This tutorial is for those of you who are starting out or don't know how Nexus works with Data Folder Mode. Nexus is a weird case with the rest of the Retro Engine games as they're all pretty easy to set up for Data Folder Mode, but Nexus takes some more steps. I'll explain more in the next segment.

1. Nexus, the strange one.

Sonic Mania, CD, 1 and 2 are all similar in that you just need to extract the Data file, rename or remove the Data.rsdk/Data.bin file and then run the game to get Data Folder Mode. Retro Sonic even works that same way, and it's even older than Nexus! The reason Nexus is different is that the files in the Data.bin file are encrypted, and trying to run the game in DFM without decrypting them results in the game crashing. This happens if one or all of the files are encrypted still, but that's what this tutorial is meant to help with as it's confusing to someone who wouldn't know this information.

2. Requirements:

RetroED v1.5.0
Sonic Nexus (Download the Summer 2008 PC build version)
The Sonic Nexus Decomp

Once you have everything downloaded, feel free to move onto the main part of the tutorial!

3. How to extract the Data.bin file:

Step 1: 
Open RetroED and open up the RSDK Unpacker.

Step 2:
Click on 'Select Data File'. This will open up a prompt from the File Explorer. 

Step 3:
On the File Explorer prompt, make sure that the file type is not set to RSDKvRS and is instead set to RSDKv1. Select the Data.bin file after you make sure of that.

Step 4:
Before going on, if you click on the first line which says Data/Game/GameConfig.bin on the left file list and the Encrypted? box isn't checked, that means that you didn't select RSDKv1 on the previous file explorer prompt. If that is the case, go back and reopen the file and make sure it's selected. The files won't be decrypted if you don't do this. 

From here, click on 'Extract Data File' and select a location for it to be extracted to.

Step 5:
Next move the extracted Data folder over to the Nexus Decomp's folder and make sure it looks like this. If you have the Data.bin file still here, rename it to anything else but Data.bin or move it out of there. If you're going to do any modding at all, also make sure you have a backup of the Data Folder anywhere in case you need or mess up something with the one in the Nexus Decomp's folder.

Step 6: 
To finish the Data Folder Mode method, go ahead and make a mods folder here. This as it's name suggests, is where you're going to be placing the mods you download at. This is what the file directory should look like at the end of this:

Step 7:
You'll know if you did everything correctly if you see the window title having (Using Data Folder) added to it!

This isn't required by any means but if you'd like to play in widescreen using my 424x240 Widescreen mod, open up the settings.ini file. Find the line that says ScreenWidth=320 and change 320 to 424, then save the file.

4. Closing Thoughts

If you have any questions or need help, feel free to ask in the comments! I'll be available to help whenever I can! This is also my first tutorial so any feedback on what to improve for future tutorials would be greatly appreciated! Have fun with Nexus!
  • sovic91 avatar
    sovic91 Joined 2y ago
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    Hi there. Quick question. Is it possible to make SSZ act 1 and 2 have different music?
    Sonic modder and enthusiast
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    DZTVE username pic Joined 1y ago
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    DZTVE avatar
    Studio project 2020 Flag
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    The gif files dont load i try to open some the nexus gif files it shows a X image ive tried this alot of times and it didnt work
    Let's a go! avatar
    Let's a go!
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  • VexDevelops avatar
    VexDevelops Joined 1y ago
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    The apps are for some reasn c# files and I can open them but it opens them in vs studio. What do I do?
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    Hydrocity Joined 2y ago
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    How did you get to the Dev-menu looking... menu? I tried turning on DevMenu on the settings.ini file but it only seemed to reset the game.
    I'll make you eat those words!
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  • BlueWolf1 avatar
    BlueWolf1 Joined 2y ago
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    I've tried extracting it, but then a windows error pops up saying that the program cannot extract the SystemText.gif file and so only extracts the GameConfig.bin file. I've done everything else right, i've done the file explorer thingy and downloaded the 1.5.0 version of RetroED and Summer 2008 PC version of Sonic Nexus.
    Edit : Nevermind it works, it was just my antivirus thinking RetroED was a virus lol
    I didn't mean to do that
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  • Very nice and easy. Tested out your widescreen mod and it works perfectly! Can't thank you enough for this tutorial.
    • Agree x 1
    To Be This Good Takes AGES
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