diff --git a/src/formats.c b/src/formats.c
index ac340d35..cee7b0fd 100644
--- a/src/formats.c
+++ b/src/formats.c
@@ -686,7 +686,7 @@ static const layout_info layout_info_list[] = {
         {layout_blocked_sthd,           "blocked (STHD)"},
         {layout_blocked_h4m,            "blocked (H4M)"},
         {layout_blocked_xa_aiff,        "blocked (XA AIFF)"},
-        {layout_blocked_vs_ffx,         "blocked (Final Fantasy X VS)"},
+        {layout_blocked_vs_ffx,         "blocked (Square VS)"},
 };
 
 static const meta_info meta_info_list[] = {
@@ -1106,7 +1106,7 @@ static const meta_info meta_info_list[] = {
         {meta_XWMA,                 "Microsoft XWMA RIFF header"},
         {meta_VA3,                  "Konami VA3 header" },
         {meta_XOPUS,                "Exient XOPUS header"},
-        {meta_VS_FFX,               "Final Fantasy X VS header"},
+        {meta_VS_FFX,               "Square VS header"},
 
 };
 
diff --git a/src/layout/blocked_vs_ffx.c b/src/layout/blocked_vs_ffx.c
index 7c7c620b..d7a924a1 100644
--- a/src/layout/blocked_vs_ffx.c
+++ b/src/layout/blocked_vs_ffx.c
@@ -1,24 +1,15 @@
 #include "layout.h"
 #include "../vgmstream.h"
 
-/* Final Fantasy X VS headered blocks */
+/* Square "VS" headered blocks */
 void block_update_vs_ffx(off_t block_offset, VGMSTREAM * vgmstream) {
     int i;
     size_t block_size = 0x800;
 
-    /* 0x00: header id
-     * 0x04: null
-     * 0x08: block number
-     * 0x0c: blocks left in the subfile
-     * 0x10: always 0x1000
-     * 0x14: always 0x64
-     * 0x18: null
-     * 0x1c: null */
-
     vgmstream->current_block_offset = block_offset;
     vgmstream->current_block_size = block_size - 0x20;
     vgmstream->next_block_offset = block_offset + block_size;
-    /* 0x08: number of remaning blocks, 0x10: some id/size? (shared in all blocks) */
+    /* 0x08: number of remaning blocks, 0x0c: blocks left */
 
     for (i = 0; i < vgmstream->channels; i++) {
         vgmstream->ch[i].offset = block_offset + 0x20 + 0x800*i;
diff --git a/src/meta/vs_ffx.c b/src/meta/vs_ffx.c
index 6fbb095b..f91fa656 100644
--- a/src/meta/vs_ffx.c
+++ b/src/meta/vs_ffx.c
@@ -2,7 +2,8 @@
 #include "../layout/layout.h"
 #include "../coding/coding.h"
 
-/* .vs/VS - from Final Fantasy X voices (PS2) */
+
+/* VS - VagStream from Square games [Final Fantasy X (PS2) voices, Unlimited Saga (PS2) voices] */
 VGMSTREAM * init_vgmstream_vs_ffx(STREAMFILE *streamFile) {
     VGMSTREAM * vgmstream = NULL;
     int channel_count, loop_flag, pitch;
@@ -13,14 +14,20 @@ VGMSTREAM * init_vgmstream_vs_ffx(STREAMFILE *streamFile) {
     /* .vs: header id (probably ok like The Bouncer's .vs, very similar) */
     if (!check_extensions(streamFile, "vs"))
         goto fail;
-    if (read_32bitBE(0x00,streamFile) != 0x56530000)    /* "VS\0\0" */
+    if (read_32bitBE(0x00,streamFile) != 0x56530000) /* "VS\0\0" */
         goto fail;
 
+    /* 0x04: null (flags? used in SVS) */
+    /* 0x08: block number */
+    /* 0x0c: blocks left in the subfile */
+    pitch = read_32bitLE(0x10,streamFile); /* usually 0x1000 = 48000 */
+    /* 0x14: volume, usually 0x64 = 100 but be bigger/smaller (up to 128?) */
+    /* 0x18: null */
+    /* 0x1c: null */
 
     loop_flag = 0;
     channel_count = 1;
     start_offset = 0x00;
-    pitch = read_32bitLE(0x10,streamFile);
 
 
     /* build the VGMSTREAM */
@@ -28,7 +35,7 @@ VGMSTREAM * init_vgmstream_vs_ffx(STREAMFILE *streamFile) {
     if (!vgmstream) goto fail;
 
     vgmstream->meta_type = meta_VS_FFX;
-    vgmstream->sample_rate = (48000 * pitch) / 4096; /* needed for rare files, sounds ok */
+    vgmstream->sample_rate = (48000 * pitch) / 4096; /* verified, needed for rare files */
     vgmstream->coding_type = coding_PSX;
     vgmstream->layout_type = layout_blocked_vs_ffx;