diff --git a/CHANGELIST.md b/CHANGELIST.md
index ee845741..7dffbff2 100644
--- a/CHANGELIST.md
+++ b/CHANGELIST.md
@@ -16,6 +16,7 @@
 - Add even more safety to clone
 - Sanitize filename after check
 - Handle pulled linebreaks better
+- Skip anti-modchip string in some cases
 
 ### 2.2 (2021-12-30)
 - Fix Saturn header finding
diff --git a/MPF.Library/InfoTool.cs b/MPF.Library/InfoTool.cs
index 18e3ed35..c81c4033 100644
--- a/MPF.Library/InfoTool.cs
+++ b/MPF.Library/InfoTool.cs
@@ -361,7 +361,8 @@ namespace MPF.Library
                     break;
 
                 case RedumpSystem.SonyPlayStation:
-                    if (drive != null)
+                    // Only check the disc if the dumping program couldn't detect
+                    if (drive != null && info.CopyProtection.AntiModchip == YesNo.NULL)
                     {
                         resultProgress?.Report(Result.Success("Checking for anti-modchip strings... this might take a while!"));
                         info.CopyProtection.AntiModchip = await GetAntiModchipDetected(drive) ? YesNo.Yes : YesNo.No;