diff --git a/Core/HLE/sceIo.cpp b/Core/HLE/sceIo.cpp
index 939ffe320f..c4a1d8c180 100644
--- a/Core/HLE/sceIo.cpp
+++ b/Core/HLE/sceIo.cpp
@@ -1406,8 +1406,13 @@ int __IoIoctl(u32 id, u32 cmd, u32 indataPtr, u32 inlen, u32 outdataPtr, u32 out
 		break;
 
 	default:
-		Reporting::ReportMessage("sceIoIoctl(%s, %08x, %x, %08x, %x)", f->fullpath.c_str(), indataPtr, inlen, outdataPtr, outlen);
-		ERROR_LOG(HLE, "UNIMPL 0=sceIoIoctl id: %08x, cmd %08x, indataPtr %08x, inlen %08x, outdataPtr %08x, outLen %08x", id,cmd,indataPtr,inlen,outdataPtr,outlen);
+		{
+			char temp[256];
+			// We want the reported message to include the cmd, so it's unique.
+			sprintf(temp, "sceIoIoctl(%%s, %08x, %%08x, %%x, %%08x, %%x)", cmd);
+			Reporting::ReportMessage(temp, f->fullpath.c_str(), cmd, indataPtr, inlen, outdataPtr, outlen);
+			ERROR_LOG(HLE, "UNIMPL 0=sceIoIoctl id: %08x, cmd %08x, indataPtr %08x, inlen %08x, outdataPtr %08x, outLen %08x", id,cmd,indataPtr,inlen,outdataPtr,outlen);
+		}
 		break;
 	}
 
diff --git a/Core/HLE/sceMpeg.cpp b/Core/HLE/sceMpeg.cpp
index 218e230244..44c9d070c6 100644
--- a/Core/HLE/sceMpeg.cpp
+++ b/Core/HLE/sceMpeg.cpp
@@ -1755,6 +1755,7 @@ const HLEFunction sceMpeg[] =
 	{0xaf26bb01,WrapU_U<sceMpegAvcResourceGetAvcEsBuf>,"sceMpegAvcResourceGetAvcEsBuf"},
 	{0xfcbdb5ad,WrapU_U<sceMpegAvcResourceInit>,"sceMpegAvcResourceInit"},
 	{0xF5E7EA31,WrapI_UUUI<sceMpegAvcConvertToYuv420>,"sceMpegAvcConvertToYuv420"},
+	{0x01977054,0,"sceMpegQueryUserdataEsSize"},
 };
 
 const HLEFunction sceMp3[] =