diff --git a/rpcs3/Emu/Cell/Modules/cellMusicDecode.cpp b/rpcs3/Emu/Cell/Modules/cellMusicDecode.cpp
index b7f21b90ad..6e6d477ec2 100644
--- a/rpcs3/Emu/Cell/Modules/cellMusicDecode.cpp
+++ b/rpcs3/Emu/Cell/Modules/cellMusicDecode.cpp
@@ -90,6 +90,7 @@ struct music_decode
 		case CELL_MUSIC_DECODE_CMD_PREV:
 		{
 			decoder.stop();
+			read_pos = 0;
 
 			if (decoder.set_next_index(command == CELL_MUSIC_DECODE_CMD_NEXT) == umax)
 			{
@@ -195,9 +196,10 @@ error_code cell_music_decode_read(vm::ptr<void> buf, vm::ptr<u32> startTime, u64
 
 	if (dec.decoder.m_size == 0)
 	{
-		return CELL_MUSIC_DECODE_ERROR_NO_LPCM_DATA;
+		return { CELL_MUSIC_DECODE_ERROR_NO_LPCM_DATA, "m_size == 0" };
 	}
 
+	ensure(dec.decoder.m_size >= dec.read_pos);
 	const u64 size_left = dec.decoder.m_size - dec.read_pos;
 
 	if (dec.read_pos == 0)
@@ -229,10 +231,10 @@ error_code cell_music_decode_read(vm::ptr<void> buf, vm::ptr<u32> startTime, u64
 
 	if (size_to_read == 0)
 	{
-		return CELL_MUSIC_DECODE_ERROR_NO_LPCM_DATA; // TODO: speculative
+		return { CELL_MUSIC_DECODE_ERROR_NO_LPCM_DATA, "size_to_read == 0" }; // TODO: speculative
 	}
 
-	std::memcpy(buf.get_ptr(), &dec.decoder.data[dec.read_pos], size_to_read);
+	std::memcpy(buf.get_ptr(), &::at32(dec.decoder.data, dec.read_pos), size_to_read);
 
 	if (size_to_read < reqSize)
 	{