diff --git a/doc/FORMATS.md b/doc/FORMATS.md
index 32631210..dc1a2662 100644
--- a/doc/FORMATS.md
+++ b/doc/FORMATS.md
@@ -185,7 +185,7 @@ different internally (encrypted, different versions, etc) and not always can be
   - Sony VAG header (custom) [*VAG_custom*]
   - Sony VAG header [*VAG*]
   - Acclaim Austin AAAp header [*AAAP*]
-  - *vag*: `.vag .swag .str .vig .l .r .vas .xa2 .snd`
+  - *vag*: `.vag .swag .str .vig .l .r .vas .xa2 .snd .svg`
   - *vag_aaap*: `.vag`
   - Codecs: PSX HEVAG
 - **ild.c**
@@ -201,7 +201,7 @@ different internally (encrypted, different versions, etc) and not always can be
   - Electronic Arts SCHl header [*EA_SCHL*]
   - *ea_schl*: `.asf .lasf .str .chk .eam .exa .sng .aud .sx .xa .strm .stm .hab .xsf .gsf .(extensionless)`
   - *ea_schl_video*: `.uv .dct .mad .wve .vp6`
-  - *ea_bnk*: `.bnk .sdt .hdt .ldt .abk .ast`
+  - *ea_bnk*: `.bnk .sdt .hdt .ldt .abk .ast .cat`
   - *ea_abk*: `.abk + .ast`
   - *ea_hdr_dat*: `.hdr + .dat`
     - Subfiles: *vag*
@@ -1299,7 +1299,7 @@ different internally (encrypted, different versions, etc) and not always can be
   - Sony BNK header [*BNK_SONY*]
   - *bnk_sony*: `.bnk`
     - Subfiles: *riff*
-  - Codecs: ATRAC9 PCM16BE PCM16LE PSX HEVAG
+  - Codecs: ATRAC9 MPEG PCM16BE PCM16LE PSX HEVAG
 - **nus3bank.c**
   - (container)
   - *nus3bank*: `.nub2 .nus3bank`
@@ -1798,9 +1798,13 @@ different internally (encrypted, different versions, etc) and not always can be
   - Sony SNDS header [*SNDS*]
   - Codecs: ATRAC9
 - **nxof.c**
-  - Nihon Falcom FDK Opus Header [*NXOF*]
+  - Nihon Falcom FDK header [*NXOF*]
   - *nxof*: `.nxopus`
   - Codecs: Opus
+- **gwb_gwd.c**
+  - Ubisoft GWB+GWD header [*GWB_GWD*]
+  - *gwb_gwd*: `.gwb + .gwd`
+  - Codecs: NGC_DSP
 - **scd_pcm.c**
   - Lunar: Eternal Blue .PCM header [*SCD_PCM*]
   - *scd_pcm*: `.pcm`
@@ -1851,7 +1855,7 @@ different internally (encrypted, different versions, etc) and not always can be
   - Codecs: NGC_DTK
 - **mpeg.c**
   - MPEG header [*MPEG*]
-  - *mpeg*: `.mp3 .mp2 .lmp3 .lmp2 .mus .imf .aix .(extensionless)`
+  - *mpeg*: `.mp3 .mp2 .lmp3 .lmp2 .mus .imf .aix .wav .lwav .(extensionless)`
   - Codecs: MPEG
 - **btsnd.c**
   - Nintendo Wii U Menu Boot Sound header [*BTSND*]
diff --git a/src/formats.c b/src/formats.c
index 12bcaa15..18995664 100644
--- a/src/formats.c
+++ b/src/formats.c
@@ -212,6 +212,7 @@ static const char* extension_list[] = {
     "gsf",
     "gsp",
     "gtd",
+    "gwb",
     "gwm",
 
     "h4m",
@@ -1422,7 +1423,8 @@ static const meta_info meta_info_list[] = {
         {meta_SQUEAKSTREAM,         "Torus SqueakStream header"},
         {meta_SQUEAKSAMPLE,         "Torus SqueakSample header"},
         {meta_SNDS,                 "Sony SNDS header"},
-        {meta_NXOF,                 "Nihon Falcom FDK Opus Header"},
+        {meta_NXOF,                 "Nihon Falcom FDK header"},
+        {meta_GWB_GWD,              "Ubisoft GWB+GWD header"},
 };
 
 void get_vgmstream_coding_description(VGMSTREAM* vgmstream, char* out, size_t out_size) {
diff --git a/src/libvgmstream.vcxproj b/src/libvgmstream.vcxproj
index f2c6d3bd..209a982f 100644
--- a/src/libvgmstream.vcxproj
+++ b/src/libvgmstream.vcxproj
@@ -446,6 +446,7 @@
     <ClCompile Include="meta\ghs.c" />
     <ClCompile Include="meta\gin.c" />
     <ClCompile Include="meta\gsnd.c" />
+    <ClCompile Include="meta\gwb_gwd.c" />
     <ClCompile Include="meta\h4m.c" />
     <ClCompile Include="meta\halpst.c" />
     <ClCompile Include="meta\hca.c" />
diff --git a/src/libvgmstream.vcxproj.filters b/src/libvgmstream.vcxproj.filters
index bc571366..502cf5b9 100644
--- a/src/libvgmstream.vcxproj.filters
+++ b/src/libvgmstream.vcxproj.filters
@@ -1159,6 +1159,9 @@
     <ClCompile Include="meta\gsnd.c">
       <Filter>meta\Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="meta\gwb_gwd.c">
+      <Filter>meta\Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="meta\h4m.c">
       <Filter>meta\Source Files</Filter>
     </ClCompile>
diff --git a/src/meta/gwb_gwd.c b/src/meta/gwb_gwd.c
new file mode 100644
index 00000000..7cc95777
--- /dev/null
+++ b/src/meta/gwb_gwd.c
@@ -0,0 +1,149 @@
+#include "meta.h"
+#include "../coding/coding.h"
+
+
+/* GWB+GWD - Ubisoft bank [Monster 4x4: World Circuit  (Wii)] */
+VGMSTREAM* init_vgmstream_gwb_gwd(STREAMFILE* sf) {
+    VGMSTREAM* vgmstream = NULL;
+    STREAMFILE* sf_body = NULL;
+    uint32_t stream_offset = 0, stream_size = 0, coef_offset;
+    int loop_flag, channels, sample_rate, interleave = 0;
+    uint32_t loop_start, loop_end;
+    int total_subsongs, target_subsong = sf->stream_index;
+
+
+    /* checks */
+    int version = read_u8(0x00, sf);
+    if (version != 6 && version != 7)
+        return NULL;
+    if (read_u32be(0x01, sf) > 0x0400) /* ID, max seen */
+        return NULL;
+    if (get_streamfile_size(sf) > 0x2000) /* arbitrary max */
+        return NULL;
+    if (!check_extensions(sf,"gwb"))
+        return NULL;
+
+    /* format (vaguely similar to ubi's hx and such banks)
+     * common
+     *   00: version (06/07, both found in the same game)
+     *   01: file ID (low number: 0x0001, 0x0342...)
+     * v6:
+     *   05: subsongs
+     * v7
+     *   05: null
+     *   09: subsongs
+     * 
+     * per subsong:
+     * - 00: flags: (v6: 09=stereo, 02=mono; v7: 0a=stereo)
+     * - 01: id (ex. 0x0002, 0x0343...)
+     * v6
+     * - 05: 0x4a header * channels
+     * v7
+     * - 05: always 0x02?
+     * - 09: stream offset
+     * - 0d: stream size
+     * - 11: always 5
+     * - 15: 0x4a header * channels
+     * 
+     * per header:
+     * - 00: loop flag
+     * - 04: sample rate
+     * - 08: loop start nibbles
+     * - 0c: loop end nibbles
+     * - 10: end nibble
+     * - 14: start nibble (after DSP frame header, so uses 0x02 at file start)
+     * - 18: null
+     * - 1c: coefs + gain + initial ps/hists + loop ps/hists
+     * Data in .gwd is N headerless DSPs. All nibble values are absolute within the file. */
+
+    uint32_t offset = version == 6 ? 0x05 : 0x09;
+
+    total_subsongs = read_s32be(offset, sf);
+    if (target_subsong == 0) target_subsong = 1;
+    if (target_subsong < 0 || target_subsong > total_subsongs || total_subsongs < 1) return NULL;
+    offset += 0x04;
+
+    /* find target header */
+    for (int i = 0; i < total_subsongs; i++) {
+        if (i + 1 == target_subsong)
+            break;
+
+        uint8_t type = read_u8(offset + 0x00, sf);
+        if (type != 0x0a && type != 0x09 && type != 0x02)
+            goto fail;
+
+        offset += 0x05 + (version == 7 ? 0x10 : 0);
+        offset += 0x4a * (type & 0x08 ? 2 : 1);
+    }
+
+    /* header */
+    {
+        uint32_t st_nibble, ed_nibble, ls_nibble, le_nibble;
+        uint8_t type = read_u8(offset + 0x00, sf);
+        channels = (type & 0x08 ? 2 : 1);
+
+        offset += 0x05;
+        if (version == 7) {
+            stream_offset = read_u32be(offset + 0x04, sf);
+            stream_size = read_u32be(offset + 0x08, sf);
+            interleave = 0x4000;
+            offset += 0x10;
+        }
+        loop_flag   = read_u32be(offset + 0x00, sf) == 1;
+        sample_rate = read_u32be(offset + 0x04, sf);
+        ls_nibble   = read_u32be(offset + 0x08, sf);
+        le_nibble   = read_u32be(offset + 0x0c, sf);
+        ed_nibble   = read_u32be(offset + 0x10, sf);
+        st_nibble   = read_u32be(offset + 0x14, sf);
+        coef_offset = offset + 0x1c;
+
+        if (version == 6) {
+            stream_offset = ((st_nibble - 2) / 2);
+            stream_size = ((ed_nibble - st_nibble - 2) / 2) * channels;
+
+            /* stereo repeats loop flag/sample rate/offsets/etc but simplify */
+            if (channels == 2) {
+                uint32_t s2_nibble = read_u32be(offset + 0x4a + 0x14, sf);
+                interleave = (s2_nibble - st_nibble) / 2;
+            }
+        }
+        loop_start = ((ls_nibble - 2) / 2 - stream_offset);
+        loop_end = ((le_nibble) / 2 - stream_offset) * channels;
+    }
+
+    /* files also have an optional companion .gsb with volume/etc config that seems to be adapted from Xbox's .xsb */
+    sf_body = open_streamfile_by_ext(sf, "gwd");
+    if (!sf_body) goto fail;
+
+
+    /* build the VGMSTREAM */
+    vgmstream = allocate_vgmstream(channels, loop_flag);
+    if (!vgmstream) goto fail;
+
+    vgmstream->meta_type = meta_GWB_GWD;
+    vgmstream->sample_rate = sample_rate;
+    vgmstream->num_samples = dsp_bytes_to_samples(stream_size, channels);
+    vgmstream->loop_start_sample = dsp_bytes_to_samples(loop_start, channels);
+    vgmstream->loop_end_sample = dsp_bytes_to_samples(loop_end, channels);;
+
+    vgmstream->num_streams = total_subsongs;
+    vgmstream->stream_size = stream_size;
+
+    vgmstream->coding_type = coding_NGC_DSP;
+    vgmstream->layout_type = layout_interleave;
+    vgmstream->interleave_block_size = interleave;
+
+    dsp_read_coefs_be(vgmstream, sf, coef_offset + 0x00, 0x4a);
+    dsp_read_hist_be (vgmstream, sf, coef_offset + 0x24, 0x4a);
+
+
+    if (!vgmstream_open_stream(vgmstream, sf_body, stream_offset))
+        goto fail;
+    close_streamfile(sf_body);
+    return vgmstream;
+
+fail:
+    close_streamfile(sf_body);
+    close_vgmstream(vgmstream);
+    return NULL;
+}
diff --git a/src/meta/meta.h b/src/meta/meta.h
index ba6e6ce0..9259d3a1 100644
--- a/src/meta/meta.h
+++ b/src/meta/meta.h
@@ -988,4 +988,6 @@ VGMSTREAM* init_vgmstream_snds(STREAMFILE* sf);
 
 VGMSTREAM* init_vgmstream_nxof(STREAMFILE* sf);
 
+VGMSTREAM* init_vgmstream_gwb_gwd(STREAMFILE* sf);
+
 #endif /*_META_H*/
diff --git a/src/vgmstream.c b/src/vgmstream.c
index 45ed678b..49b58574 100644
--- a/src/vgmstream.c
+++ b/src/vgmstream.c
@@ -523,6 +523,7 @@ init_vgmstream_t init_vgmstream_functions[] = {
     init_vgmstream_snds,
     init_vgmstream_adm2,
     init_vgmstream_nxof,
+    init_vgmstream_gwb_gwd,
 
     /* lower priority metas (no clean header identity, somewhat ambiguous, or need extension/companion file to identify) */
     init_vgmstream_scd_pcm,
diff --git a/src/vgmstream_types.h b/src/vgmstream_types.h
index a3c48af0..648687a2 100644
--- a/src/vgmstream_types.h
+++ b/src/vgmstream_types.h
@@ -703,6 +703,7 @@ typedef enum {
     meta_SQUEAKSAMPLE,
     meta_SNDS,
     meta_NXOF,
+    meta_GWB_GWD,
 
 } meta_t;