Though Call of Duty: Modern Warfare states that it is state-of-the-art, the old-time error is still not resolved. The error that remains unresolved and pops up continuously is the Call of Duty Modern Warfare disc read error 3.1. This error message usually is displayed once you open the game and prevents you from performing any activity. Are you getting the same pop-up? Worry not! We have provided all the possible solutions in this article.
How to Fix Call of Duty Modern Warfare Disc Read Error 3.1
Call of Duty Modern Warfare disc read error 3.1 refers to the game is having trouble reading data from the game disc.
Quick Answer
To fix Modern Warfare disc read error 3.1, follow these steps:
1. Clean the game disc.
2. Try to keep game files updated.
3. Clear the game cache data.
4. Reinstall the game.
What Causes Disc Read Error 3.1?
Before we find the causes of the error, it is important to understand the answer to the question of what does disc read error 3.1 means. As stated earlier, the error occurs if the game file is unable to read the contents of the file.
The major reasons or the answers to the question of what causes disc read error 3.1 are listed in this section.
- Issue with GPU
- Corrupt game File
- Outdated OS
- Interference from other software
- Malfunctioned game disc
How to Fix Call of Duty Modern Warfare Disc Read Error 3.1
The COD MW disc read error 3.1 may have occurred due to various reasons as stated above. The methods to fix the error help in obtaining a better gaming experience based on the causes.
Method 1: Basic Troubleshooting Methods
If the error occurs due to some glitches or issues, it may be resolved by tweaking some options on the PC. To fix the Call of Duty Modern Warfare disc read error 3.1, you can try the basic troubleshooting methods given in this section.
1A. Update Graphic Drivers
An outdated Graphics card may cause a lag in the display and this error might pop up. Updated GPU drivers can ensure the best performance and minimize such issues. You can follow the instructions given in the link to update the GPU on your PC.
1B. Update Windows
Compatibility and performance issues that arise on the PC may be a major contributing factor to this disc read error. In this case, you can try installing all the pending Windows OS updates on your PC and check if the error is resolved. You can learn about the method to update Windows OS in the link given here.
Method 2: Restart Modern Warfare Game
A minor unresolved glitch is a major culprit in most instances. In this case, just a simple restart of the game can fix Modern Warfare disc read error 3.1. By restarting the game, you can re-download some portions of the game files that are not properly installed.
1. Open Windows Explorer using the Windows+ E keys at once.
2. Navigate to the following location as said.
C:\Call of Duty Modern Warfare\main
3. Press the Ctrl key and select the files with the .bak extension and the following cache files.
- data0.dcache
- data1.dcache
- toc0.dcache
- toc1.dcache
4. Press the Delete key to delete the selected files.
5. Move to the following location path as given below.
C:\Users\Lenov0\Documents\Call of Duty Modern Warfare\players
6. Select the following cache files mentioned below by following the instruction given earlier.
- adv_options.ini
- ppsod.dat
7. Delete these files as well as said earlier.
8. Open Desktop using Windows + D keys simultaneously and open the Battle.net game app.
9. Start the COD MW game and see if the error persists.
Method 3: Alter Build File
We can try altering the build file of the game to reconfigure the data of the game file to fix this error.
1. Open File Explorer using the Windows+ E keys together.
2. Navigate to the following location as shown below.
C:\Users\Lenov0\Documents\Call of Duty Modern Warfare
3. Right-click on the .build.info file and click on the Rename option.
4. Alter the file name to .build.info.bak and press the Enter key.
5. Click on the Yes button on the confirmation screen to alter the file name and launch the game.
Method 4: Scan and Repair Files
If the installation of the files is incomplete or if there is some unidentified issue that is causing the Call of Duty Modern Warfare disc read error 3.1, you can repair the game file. Using the built-in repair tool, you can reconfigure the game files and add them to the app.
1. Open the Blizzard Battle.net client on your PC.
2. On the left pane, click on the Call of Duty: MW game in the PARTNER GAMES section.
3. Click on the Options drop-down menu on the right pane and click on the Show in Explorer option.
4. Select all the files except the folders and press the Delete key to delete them.
5. Return to the Battle.net client, click on the Options menu as said, and click on the Scan and Repair option.
6. On the confirmation window, click on the Begin Scan button.
7. Wait till the repair of the file is complete and then relaunch the game.
Method 5: Disable Sonic Studio Virtual Mixer
Sonic Studio Virtual Mixer is an audio suite with high-end ASUS motherboards. The interference from this software on the game may cause the error, and disabling its activity may fix this error.
1. Open the Run dialog box using the Windows + R keys simultaneously.
2. In the field, type mmsys.cpl and click on the OK button.
3. In the Playback tab, right-click on the Sonic Studio Virtual Mixer device and click on the Disable option.
4. Restart the Modern Warfare game on the app as said earlier.
Method 6: Disable Game Overlays
If the interference from other game apps is causing the error, you can try disabling them to fix MW disc read error 3.1. Disabling these overlays can help clear triggering the error on the game.
Option I: On Origin
Origin in-game overlay can be a major impending factor in the effective functioning of the game. You can disable the Origin game overlay as follows to fix it.
1. Open the Origin app using the search bar.
2. Sign in to your EA account using the account credentials.
3. Click on the Origin tab at the top bar and click on the Application Settings option in the menu.
4. Move to the ORIGIN IN-GAME tab and toggle off the Enable Origin in-Game setting.
Option II: On Steam
Steam app overlay may interfere with the gaming experience and the Call of Duty Modern Warfare disc read error 3.1 would occur; you can disable the Steam overlay using the link given here.
Option III: On Discord
Discord is an online streaming platform and the overlay setting on the app may interfere with the game. Follow the instructions in the link to disable the Discord overlay and you may be able to resolve the question of why do I keep getting the Modern Warfare disc read error 3.1.
Option IV: On NVIDIA GeForce Experience
Though the NVIDIA GPU is used to enhance the display quality and user experience, the interference from the software may cause the Call of Duty Modern Warfare disc read error 3.1. You can disable the NVIDIA GeForce Experience as said in the article.
Then, restart your PC by following the instructions in the link given here.
Method 7: Disable Security Software
As stated as a reason for the error in what causes disc read error 3.1 section, the interference from the security software may be the major cause. You can disable the software on your PC to fix the error. However, you have to note that some third-party apps may be able to access your PC and cause a security threat during the period.
Option I: Disable Windows Firewall (Not Recommended)
The security setting on the Windows Firewall may assume the game to be a threat and may rule it out. You can try disabling the firewall as said in the link given here to feel relieved of the question of why do I keep getting the Modern Warfare disc read error 3.1.
Option II: Disable Anti-virus Software (If Applicable)
Another security software that interferes with the game is the anti-virus app. Follow the instructions in the link given here for disabling the anti-virus app to resolve this error.
Method 8: Reinstall Battle.net Game
If none of the methods helps in fixing the error, you can try reinstalling the Battle.net app on your PC. This would clear all the issues and lag on your PC and help in the fresh installation of the game.
Step I: Uninstall Battle.net App
Follow the instructions in the link given to uninstall the Battle.net app from your PC. At the confirmation screen, click on the Yes, Uninstall button to complete the uninstallation.
Step II: Reinstall Battle.net App
The final step is to reinstall the Battle.net app using your web browser and then play the game.
1. Use the search bar to open the Google Chrome app.
2. Open the download website of the Battle.net app and then click on the Download for Windows button.
3. Run the downloaded Battle.net-setup.exe file at the bottom-left corner of the page.
4. As a preferred language, choose the English (US) option and click on the Continue button.
5. You can alter the location of the installation file using the Change option and then click on the Continue button.
6. Type the user credentials and click on the Log In button.
7. Launch the Battle.net app from the Desktop as said earlier and open the COD MW game.
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You have learned the methods to fix the Call of Duty Modern Warfare disc read error 3.1 in this article. It would be of immense help if you can share your suggestions and queries in the comments section.