diff --git a/renderdoc/api/replay/replay_enums.h b/renderdoc/api/replay/replay_enums.h
index 72871b504..c5a603a43 100644
--- a/renderdoc/api/replay/replay_enums.h
+++ b/renderdoc/api/replay/replay_enums.h
@@ -490,6 +490,7 @@ enum ReplayCreateStatus
   eReplayCreate_FileIOFailed,
   eReplayCreate_FileIncompatibleVersion,
   eReplayCreate_FileCorrupted,
+  eReplayCreate_ImageUnsupported,
   eReplayCreate_APIUnsupported,
   eReplayCreate_APIInitFailed,
   eReplayCreate_APIIncompatibleVersion,
diff --git a/renderdoc/core/image_viewer.cpp b/renderdoc/core/image_viewer.cpp
index db8db780e..0a2f970da 100644
--- a/renderdoc/core/image_viewer.cpp
+++ b/renderdoc/core/image_viewer.cpp
@@ -311,7 +311,7 @@ ReplayCreateStatus IMG_CreateReplayDevice(const char *logfile, IReplayDriver **d
       RDCERR(
           "EXR file detected, but couldn't load with ParseMultiChannelEXRHeaderFromMemory %d: '%s'",
           ret, err);
-      return eReplayCreate_APIUnsupported;
+      return eReplayCreate_ImageUnsupported;
     }
   }
   else if(stbi_is_hdr_from_file(f))
@@ -325,7 +325,7 @@ ReplayCreateStatus IMG_CreateReplayDevice(const char *logfile, IReplayDriver **d
     {
       FileIO::fclose(f);
       RDCERR("HDR file recognised, but couldn't load with stbi_loadf_from_file");
-      return eReplayCreate_FileCorrupted;
+      return eReplayCreate_ImageUnsupported;
     }
 
     free(data);
@@ -339,7 +339,7 @@ ReplayCreateStatus IMG_CreateReplayDevice(const char *logfile, IReplayDriver **d
     {
       FileIO::fclose(f);
       RDCERR("DDS file recognised, but couldn't load");
-      return eReplayCreate_FileCorrupted;
+      return eReplayCreate_ImageUnsupported;
     }
 
     for(int i = 0; i < read_data.slices * read_data.mips; i++)
@@ -359,7 +359,7 @@ ReplayCreateStatus IMG_CreateReplayDevice(const char *logfile, IReplayDriver **d
     if(ret == 0 || width == 0 || width == ~0U || height == 0 || height == ~0U)
     {
       FileIO::fclose(f);
-      return eReplayCreate_APIUnsupported;
+      return eReplayCreate_ImageUnsupported;
     }
 
     byte *data = stbi_load_from_file(f, &ignore, &ignore, &ignore, 4);
@@ -368,7 +368,7 @@ ReplayCreateStatus IMG_CreateReplayDevice(const char *logfile, IReplayDriver **d
     {
       FileIO::fclose(f);
       RDCERR("File recognised, but couldn't load with stbi_load_from_file");
-      return eReplayCreate_FileCorrupted;
+      return eReplayCreate_ImageUnsupported;
     }
 
     free(data);
diff --git a/renderdocui/Code/Core.cs b/renderdocui/Code/Core.cs
index fd4bcbc04..35170fc8f 100644
--- a/renderdocui/Code/Core.cs
+++ b/renderdocui/Code/Core.cs
@@ -525,7 +525,7 @@ namespace renderdocui.Code
                                                     "Check diagnostic log in Help menu for more details.", logFile, replayHost, errmsg),
                                     "Error opening log", MessageBoxButtons.OK, MessageBoxIcon.Error);
                 else
-                    MessageBox.Show(String.Format("{0}\nFailed to open logfile for replay: {1}.\n\n" +
+                    MessageBox.Show(String.Format("{0}\nFailed to open file for replay: {1}.\n\n" +
                                                     "Check diagnostic log in Help menu for more details.", logFile, errmsg),
                                     "Error opening log", MessageBoxButtons.OK, MessageBoxIcon.Error);
 
diff --git a/renderdocui/Interop/Enums.cs b/renderdocui/Interop/Enums.cs
index f21851fe6..40965c864 100644
--- a/renderdocui/Interop/Enums.cs
+++ b/renderdocui/Interop/Enums.cs
@@ -501,6 +501,7 @@ namespace renderdoc
         FileIOFailed,
         FileIncompatibleVersion,
         FileCorrupted,
+        ImageUnsupported,
         APIUnsupported,
         APIInitFailed,
         APIIncompatibleVersion,
@@ -582,11 +583,12 @@ namespace renderdoc
                 case ReplayCreateStatus.InternalError: return "Internal Error";
                 case ReplayCreateStatus.NetworkIOFailed: return "Network I/O operation failed";
                 case ReplayCreateStatus.FileIOFailed: return "File I/O operation failed";
-                case ReplayCreateStatus.FileIncompatibleVersion: return "Logfile is of an incompatible version";
-                case ReplayCreateStatus.FileCorrupted: return "Logfile data is corrupted";
-                case ReplayCreateStatus.APIUnsupported: return "API used in logfile is not supported";
+                case ReplayCreateStatus.FileIncompatibleVersion: return "File is of an incompatible version";
+                case ReplayCreateStatus.FileCorrupted: return "File is corrupted or unrecognisable format";
+                case ReplayCreateStatus.ImageUnsupported: return "The contents or format of the image is not supported";
+                case ReplayCreateStatus.APIUnsupported: return "API used is not supported";
                 case ReplayCreateStatus.APIInitFailed: return "Replay API failed to initialise";
-                case ReplayCreateStatus.APIIncompatibleVersion: return "API-specific data used in logfile is of an incompatible version";
+                case ReplayCreateStatus.APIIncompatibleVersion: return "API-specific data used is of an incompatible version";
                 case ReplayCreateStatus.APIHardwareUnsupported: return "Your hardware or software configuration doesn't meet this API's minimum requirements";
             }