diff --git a/libpsxav/adpcm.c b/libpsxav/adpcm.c
index c78f95b..96c0ad0 100644
--- a/libpsxav/adpcm.c
+++ b/libpsxav/adpcm.c
@@ -242,7 +242,7 @@ static void psx_audio_xa_encode_init_sector(psx_cdrom_sector_mode2_t *buffer, ps
 		memset(buffer->sync + 1, 0xFF, 10);
 		buffer->header.mode = 0x02;
 	} else {
-		memset(buffer->subheader, 0, PSX_CDROM_SECTOR_SIZE);
+		memset(buffer->subheader, 0, PSX_CDROM_SECTOR_SIZE - 16);
 	}
 
 	buffer->subheader[0].file = settings.file_number;
diff --git a/psxavenc/cdrom.c b/psxavenc/cdrom.c
index 86018f0..17cfec4 100644
--- a/psxavenc/cdrom.c
+++ b/psxavenc/cdrom.c
@@ -29,7 +29,7 @@ void init_sector_buffer_video(psx_cdrom_sector_mode2_t *buffer, settings_t *sett
 		memset(buffer->sync + 1, 0xFF, 10);
 		buffer->header.mode = 0x02;
 	} else {
-		memset(buffer->subheader, 0, PSX_CDROM_SECTOR_SIZE);
+		memset(buffer->subheader, 0, PSX_CDROM_SECTOR_SIZE - 16);
 	}
 
 	buffer->subheader[0].file = settings->file_number;