diff --git a/renderdoc/common/dds_readwrite.cpp b/renderdoc/common/dds_readwrite.cpp
index 967a30103..7af62dfdc 100644
--- a/renderdoc/common/dds_readwrite.cpp
+++ b/renderdoc/common/dds_readwrite.cpp
@@ -694,7 +694,10 @@ bool write_dds_to_file(FILE *f, const dds_data &data)
   headerDXT10.arraySize = data.slices;
 
   if(headerDXT10.dxgiFormat == DXGI_FORMAT_UNKNOWN)
+  {
+    RDCERR("Couldn't convert resource format to DXGI format");
     return false;
+  }
 
   if(data.cubemap)
   {
diff --git a/renderdoc/os/os_specific.h b/renderdoc/os/os_specific.h
index ac175e966..7dc5e983e 100644
--- a/renderdoc/os/os_specific.h
+++ b/renderdoc/os/os_specific.h
@@ -254,6 +254,8 @@ size_t fwrite(const void *buf, size_t elementSize, size_t count, FILE *f);
 
 bool exists(const char *filename);
 
+std::string ErrorString();
+
 std::string getline(FILE *f);
 
 uint64_t ftell64(FILE *f);
diff --git a/renderdoc/os/posix/posix_stringio.cpp b/renderdoc/os/posix/posix_stringio.cpp
index d742f1f79..4b91aa28f 100644
--- a/renderdoc/os/posix/posix_stringio.cpp
+++ b/renderdoc/os/posix/posix_stringio.cpp
@@ -326,6 +326,17 @@ FILE *fopen(const char *filename, const char *mode)
   return ::fopen(filename, mode);
 }
 
+std::string ErrorString()
+{
+  int err = errno;
+
+  char buf[256] = {0};
+
+  strerror_r(err, buf, 256);
+
+  return buf;
+}
+
 string getline(FILE *f)
 {
   string ret;
diff --git a/renderdoc/os/win32/win32_stringio.cpp b/renderdoc/os/win32/win32_stringio.cpp
index 3cfeca16d..7362c9798 100644
--- a/renderdoc/os/win32/win32_stringio.cpp
+++ b/renderdoc/os/win32/win32_stringio.cpp
@@ -476,6 +476,17 @@ bool exists(const char *filename)
   return (res == 0);
 }
 
+std::string ErrorString()
+{
+  int err = errno;
+
+  char buf[256] = {0};
+
+  strerror_s(buf, err);
+
+  return buf;
+}
+
 string getline(FILE *f)
 {
   string ret;
diff --git a/renderdoc/replay/replay_controller.cpp b/renderdoc/replay/replay_controller.cpp
index 54aba9443..9fa1ca96e 100644
--- a/renderdoc/replay/replay_controller.cpp
+++ b/renderdoc/replay/replay_controller.cpp
@@ -946,6 +946,7 @@ bool ReplayController::SaveTexture(const TextureSave &saveData, const char *path
   if(!f)
   {
     success = false;
+    RDCERR("Couldn't write to path %s, error: %s", path, FileIO::ErrorString().c_str());
   }
   else
   {
@@ -969,6 +970,9 @@ bool ReplayController::SaveTexture(const TextureSave &saveData, const char *path
       int ret = stbi_write_bmp_to_func(fileWriteFunc, (void *)f, td.width, td.height, numComps,
                                        subdata[0]);
       success = (ret != 0);
+
+      if(!success)
+        RDCERR("stbi_write_bmp_to_func failed: %d", ret);
     }
     else if(sd.destType == FileType::PNG)
     {
@@ -979,6 +983,9 @@ bool ReplayController::SaveTexture(const TextureSave &saveData, const char *path
       int ret = stbi_write_png_to_func(fileWriteFunc, (void *)f, td.width, td.height, numComps,
                                        subdata[0], rowPitch);
       success = (ret != 0);
+
+      if(!success)
+        RDCERR("stbi_write_png_to_func failed: %d", ret);
     }
     else if(sd.destType == FileType::TGA)
     {
@@ -989,6 +996,9 @@ bool ReplayController::SaveTexture(const TextureSave &saveData, const char *path
       int ret = stbi_write_tga_to_func(fileWriteFunc, (void *)f, td.width, td.height, numComps,
                                        subdata[0]);
       success = (ret != 0);
+
+      if(!success)
+        RDCERR("stbi_write_tga_to_func failed: %d", ret);
     }
     else if(sd.destType == FileType::JPG)
     {
@@ -1005,6 +1015,9 @@ bool ReplayController::SaveTexture(const TextureSave &saveData, const char *path
       success = jpge::compress_image_to_jpeg_file_in_memory(jpgdst, len, td.width, td.height,
                                                             numComps, subdata[0], p);
 
+      if(!success)
+        RDCERR("jpge::compress_image_to_jpeg_file_in_memory failed");
+
       if(success)
         fwrite(jpgdst, 1, len, f);
 
@@ -1144,6 +1157,9 @@ bool ReplayController::SaveTexture(const TextureSave &saveData, const char *path
       {
         int ret = stbi_write_hdr_to_func(fileWriteFunc, (void *)f, td.width, td.height, 4, fldata);
         success = (ret != 0);
+
+        if(!success)
+          RDCERR("stbi_write_hdr_to_func failed: %d", ret);
       }
       else if(sd.destType == FileType::EXR)
       {