diff --git a/engine/client/cl_game.c b/engine/client/cl_game.c
index a1041a43..731ceb3a 100644
--- a/engine/client/cl_game.c
+++ b/engine/client/cl_game.c
@@ -1215,7 +1215,7 @@ static qboolean CL_LoadHudSprite( const char *szSpriteName, model_t *m_pSprite,
 		}
 		else
 		{
-			Con_Reportf( S_ERROR "%s couldn't load\n", szSpriteName );
+			Con_Reportf( S_ERROR "Could not load HUD sprite %s\n", szSpriteName );
 			Mod_UnloadSpriteModel( m_pSprite );
 			return false;
 		}
@@ -2341,7 +2341,7 @@ int CL_FindModelIndex( const char *m )
 	if( lasttimewarn < host.realtime )
 	{
 		// tell user about problem (but don't spam console)
-		Con_Printf( S_ERROR "%s not precached\n", filepath );
+		Con_Printf( S_ERROR "Could not find index for model %s: not precached\n", filepath );
 		lasttimewarn = host.realtime + 1.0f;
 	}
 
diff --git a/engine/client/cl_gameui.c b/engine/client/cl_gameui.c
index eaf9a890..c288d7a9 100644
--- a/engine/client/cl_gameui.c
+++ b/engine/client/cl_gameui.c
@@ -382,7 +382,7 @@ static HIMAGE pfnPIC_Load( const char *szPicName, const byte *image_buf, int ima
 
 	if( !szPicName || !*szPicName )
 	{
-		Con_Reportf( S_ERROR "CL_LoadImage: bad name!\n" );
+		Con_Reportf( S_ERROR "CL_LoadImage: refusing to load image with empty name\n" );
 		return 0;
 	}
 
diff --git a/engine/client/cl_main.c b/engine/client/cl_main.c
index e1d86ee8..84548de3 100644
--- a/engine/client/cl_main.c
+++ b/engine/client/cl_main.c
@@ -2314,7 +2314,7 @@ void CL_ProcessFile( qboolean successfully_received, const char *filename )
 				}
 				else
 				{
-					Con_Printf( "Downloaded %i bytes for purported %i byte file, ignoring download\n", 
+					Con_Printf( "Downloaded %i bytes for purported %i byte file, ignoring download\n",
 					cls.netchan.tempbuffersize, p->nDownloadSize );
 				}
 
@@ -2509,7 +2509,7 @@ qboolean CL_PrecacheResources( void )
 			{
 				if( FBitSet( pRes->ucFlags, RES_WASMISSING ))
 				{
-					Con_Printf( S_ERROR "%s%s couldn't load\n", DEFAULT_SOUNDPATH, pRes->szFileName );
+					Con_Printf( S_ERROR "Could not load sound %s%s\n", DEFAULT_SOUNDPATH, pRes->szFileName );
 					cl.sound_precache[pRes->nIndex][0] = 0;
 					cl.sound_index[pRes->nIndex] = 0;
 				}
diff --git a/engine/client/s_vox.c b/engine/client/s_vox.c
index 39b0e1d7..5955e344 100644
--- a/engine/client/s_vox.c
+++ b/engine/client/s_vox.c
@@ -545,7 +545,7 @@ void VOX_ParseLineCommands( char *pSentenceData, int sentenceIndex )
 		length = pNext - pSentenceData;
 		if( tempBufferPos + length > sizeof( tempBuffer ))
 		{
-			Con_Printf( S_ERROR "sentence too long!\n" );
+			Con_Printf( S_ERROR "Sentence too long (max length %d characters)\n", sizeof(tempBuffer) - 1 );
 			return;
 		}
 
@@ -619,7 +619,7 @@ void VOX_ReadSentenceFile( const char *psentenceFileName )
 	{
 		if( g_numSentences >= MAX_SENTENCES )
 		{
-			Con_Printf( S_ERROR "VOX_Init: too many sentences specified\n" );
+			Con_Printf( S_ERROR "VOX_Init: too many sentences specified, max is %d\n", MAX_SENTENCES );
 			break;
 		}
 
diff --git a/engine/common/mod_bmodel.c b/engine/common/mod_bmodel.c
index 9e62218a..dad9490c 100644
--- a/engine/common/mod_bmodel.c
+++ b/engine/common/mod_bmodel.c
@@ -309,7 +309,7 @@ static void Mod_LoadLump( const byte *in, mlumpinfo_t *info, mlumpstat_t *stat,
 	if( l->filelen % real_entrysize )
 	{
 		if( !FBitSet( flags, LUMP_SILENT ))
-			Con_DPrintf( S_ERROR "Mod_Load%s: funny lump size\n", msg2 );
+			Con_DPrintf( S_ERROR "Mod_Load%s: Lump size %d was not a multiple of %u bytes\n", msg2, l->filelen, real_entrysize );
 		loadstat.numerrors++;
 		return;
 	}
diff --git a/engine/common/model.c b/engine/common/model.c
index 177b3b21..d80cb199 100644
--- a/engine/common/model.c
+++ b/engine/common/model.c
@@ -288,8 +288,8 @@ model_t *Mod_LoadModel( model_t *mod, qboolean crash )
 	{
 		memset( mod, 0, sizeof( model_t ));
 
-		if( crash ) Host_Error( "%s couldn't load\n", tempname );
-		else Con_Printf( S_ERROR "%s couldn't load\n", tempname );
+		if( crash ) Host_Error( "Could not load model %s from disk\n", tempname );
+		else Con_Printf( S_ERROR "Could not load model %s from disk\n", tempname );
 
 		return NULL;
 	}
@@ -331,8 +331,8 @@ model_t *Mod_LoadModel( model_t *mod, qboolean crash )
 		Mod_FreeModel( mod );
 		Mem_Free( buf );
 
-		if( crash ) Host_Error( "%s couldn't load\n", tempname );
-		else Con_Printf( S_ERROR "%s couldn't load\n", tempname );
+		if( crash ) Host_Error( "Could not load model %s\n", tempname );
+		else Con_Printf( S_ERROR "Could not load model %s\n", tempname );
 
 		return NULL;
 	}
diff --git a/engine/server/sv_game.c b/engine/server/sv_game.c
index d0975bc4..3c9cac80 100644
--- a/engine/server/sv_game.c
+++ b/engine/server/sv_game.c
@@ -1308,7 +1308,7 @@ void pfnSetModel( edict_t *e, const char *m )
 
 		if( notfound )
 		{
-			Con_Printf( S_ERROR "no precache: %s\n", name );
+			Con_Printf( S_ERROR "Failed to set model %s: was not precached\n", name );
 			return;
 		}
 	}
@@ -1316,7 +1316,7 @@ void pfnSetModel( edict_t *e, const char *m )
 	if( e == svgame.edicts )
 	{
 		if( sv.state == ss_active )
-			Con_Printf( S_ERROR "world model can't be changed\n" );
+			Con_Printf( S_ERROR "Failed to set model %s: world model cannot be changed\n", name );
 		return;
 	}
 
@@ -1363,8 +1363,8 @@ int pfnModelIndex( const char *m )
 			return i;
 	}
 
-	Con_Printf( S_ERROR "no precache: %s\n", name );
-	return 0; 
+	Con_Printf( S_ERROR "Cannot get index for model %s: not precached\n", name );
+	return 0;
 }
 
 /*
@@ -4415,7 +4415,7 @@ void pfnForceUnmodified( FORCE_TYPE type, float *mins, float *maxs, const char *
 			if( !Q_strcmp( filename, pc->filename ))
 				return;
 		}
-		Con_Printf( S_ERROR "no precache: %s\n", filename );
+		Con_Printf( S_ERROR "Failed to enforce consistency for %s: was not precached\n", filename );
 	}
 }
 
diff --git a/engine/server/sv_save.c b/engine/server/sv_save.c
index 5fb9e478..25dc0d3c 100644
--- a/engine/server/sv_save.c
+++ b/engine/server/sv_save.c
@@ -842,7 +842,7 @@ static SAVERESTOREDATA *LoadSaveData( const char *level )
 
 	if(( pFile = FS_Open( name, "rb", true )) == NULL )
 	{
-		Con_Printf( S_ERROR "couldn't open.\n" );
+		Con_Printf( S_ERROR "Couldn't open save data file %s.\n", name );
 		return NULL;
 	}