diff --git a/core/hw/gdrom/gdromv3.h b/core/hw/gdrom/gdromv3.h
index 9c3469207..5e2aa63a6 100644
--- a/core/hw/gdrom/gdromv3.h
+++ b/core/hw/gdrom/gdromv3.h
@@ -181,7 +181,7 @@ struct read_buff_t
 {
 	u32 cache_index;
 	u32 cache_size;
-	u8 cache[2352 * 8192];	//up to 8192 sectors
+	u8 cache[2352 * 32];
 } ;
 
 //pio buffer