diff --git a/TOOLS/old-makefile b/TOOLS/old-makefile
index 3865666e02..43b996f96f 100644
--- a/TOOLS/old-makefile
+++ b/TOOLS/old-makefile
@@ -224,7 +224,6 @@ SOURCES = audio/audio.c \
           sub/osd.c \
           sub/sd_lavc.c \
           sub/sd_lavc_conv.c \
-          sub/sd_microdvd.c \
           sub/sd_srt.c \
           ta/ta.c \
           ta/ta_utils.c \
diff --git a/sub/dec_sub.c b/sub/dec_sub.c
index 3a2136f302..59e994d4f4 100644
--- a/sub/dec_sub.c
+++ b/sub/dec_sub.c
@@ -35,7 +35,6 @@
 extern const struct sd_functions sd_ass;
 extern const struct sd_functions sd_lavc;
 extern const struct sd_functions sd_srt;
-extern const struct sd_functions sd_microdvd;
 extern const struct sd_functions sd_lavc_conv;
 
 static const struct sd_functions *const sd_list[] = {
@@ -44,7 +43,6 @@ static const struct sd_functions *const sd_list[] = {
 #endif
     &sd_lavc,
     &sd_srt,
-    &sd_microdvd,
     &sd_lavc_conv,
     NULL
 };
diff --git a/sub/sd_microdvd.c b/sub/sd_microdvd.c
deleted file mode 100644
index b6e3a93091..0000000000
--- a/sub/sd_microdvd.c
+++ /dev/null
@@ -1,344 +0,0 @@
-/*
- * Subtitles converter to SSA/ASS in order to allow special formatting
- *
- * This file is part of mpv.
- *
- * mpv is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * mpv is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with mpv.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <string.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <stdbool.h>
-#include <libavutil/common.h>
-
-#include "common/msg.h"
-#include "misc/bstr.h"
-#include "sd.h"
-
-struct line {
-    char *buf;
-    int bufsize;
-    int len;
-};
-
-#ifdef __GNUC__
-static void append_text(struct line *dst, char *fmt, ...) __attribute__ ((format(printf, 2, 3)));
-#endif
-
-static void append_text(struct line *dst, char *fmt, ...)
-{
-    va_list va;
-    va_start(va, fmt);
-    int ret = vsnprintf(dst->buf + dst->len, dst->bufsize - dst->len, fmt, va);
-    if (ret < 0)
-        goto out;
-    dst->len += ret;
-    if (dst->len > dst->bufsize)
-        dst->len = dst->bufsize;
- out:
-    va_end(va);
-}
-
-static int indexof(const char *s, int c)
-{
-    char *f = strchr(s, c);
-    return f ? (f - s) : -1;
-}
-
-/*
- *      MicroDVD
- *
- *      Based on the specifications found here:
- *      https://trac.videolan.org/vlc/ticket/1825#comment:6
- */
-
-struct microdvd_tag {
-    char key;
-    int persistent;
-    uint32_t data1;
-    uint32_t data2;
-    struct bstr data_string;
-};
-
-#define MICRODVD_PERSISTENT_OFF     0
-#define MICRODVD_PERSISTENT_ON      1
-#define MICRODVD_PERSISTENT_OPENED  2
-
-// Color, Font, Size, cHarset, stYle, Position, cOordinate
-#define MICRODVD_TAGS               "cfshyYpo"
-
-static void microdvd_set_tag(struct microdvd_tag *tags, struct microdvd_tag tag)
-{
-    int tag_index = indexof(MICRODVD_TAGS, tag.key);
-
-    if (tag_index < 0)
-        return;
-    memcpy(&tags[tag_index], &tag, sizeof(tag));
-}
-
-// italic, bold, underline, strike-through
-#define MICRODVD_STYLES             "ibus"
-
-static char *microdvd_load_tags(struct microdvd_tag *tags, char *s)
-{
-    while (*s == '{') {
-        char *start = s;
-        char tag_char = *(s + 1);
-        struct microdvd_tag tag = {0};
-
-        if (!tag_char || *(s + 2) != ':')
-            break;
-        s += 3;
-
-        switch (tag_char) {
-
-        /* Style */
-        case 'Y':
-            tag.persistent = MICRODVD_PERSISTENT_ON;
-        case 'y':
-            while (*s && *s != '}') {
-                int style_index = indexof(MICRODVD_STYLES, *s);
-
-                if (style_index >= 0)
-                    tag.data1 |= (1 << style_index);
-                s++;
-            }
-            if (*s != '}')
-                break;
-            /* We must distinguish persistent and non-persistent styles
-             * to handle this kind of style tags: {y:ib}{Y:us} */
-            tag.key = tag_char;
-            break;
-
-        /* Color */
-        case 'C':
-            tag.persistent = MICRODVD_PERSISTENT_ON;
-        case 'c':
-            tag.data1 = strtol(s, &s, 16) & 0x00ffffff;
-            if (*s != '}')
-                break;
-            tag.key = 'c';
-            break;
-
-        /* Font name */
-        case 'F':
-            tag.persistent = MICRODVD_PERSISTENT_ON;
-        case 'f':
-        {
-            int len = indexof(s, '}');
-            if (len < 0)
-                break;
-            tag.data_string.start = s;
-            tag.data_string.len = len;
-            s += len;
-            tag.key = 'f';
-            break;
-        }
-
-        /* Font size */
-        case 'S':
-            tag.persistent = MICRODVD_PERSISTENT_ON;
-        case 's':
-            tag.data1 = strtol(s, &s, 10);
-            if (*s != '}')
-                break;
-            tag.key = 's';
-            break;
-
-        /* Charset */
-        case 'H':
-        {
-            //TODO: not yet handled, just parsed.
-            int len = indexof(s, '}');
-            if (len < 0)
-                break;
-            tag.data_string.start = s;
-            tag.data_string.len = len;
-            s += len;
-            tag.key = 'h';
-            break;
-        }
-
-        /* Position */
-        case 'P':
-            tag.persistent = MICRODVD_PERSISTENT_ON;
-            tag.data1 = (*s++ == '1');
-            if (*s != '}')
-                break;
-            tag.key = 'p';
-            break;
-
-        /* Coordinates */
-        case 'o':
-            tag.persistent = MICRODVD_PERSISTENT_ON;
-            tag.data1 = strtol(s, &s, 10);
-            if (*s != ',')
-                break;
-            s++;
-            tag.data2 = strtol(s, &s, 10);
-            if (*s != '}')
-                break;
-            tag.key = 'o';
-            break;
-
-        default:    /* Unknown tag, we consider it to be text */
-            break;
-        }
-
-        if (tag.key == 0)
-            return start;
-
-        microdvd_set_tag(tags, tag);
-        s++;
-    }
-    return s;
-}
-
-static void microdvd_open_tags(struct line *new_line, struct microdvd_tag *tags)
-{
-    for (int i = 0; i < sizeof(MICRODVD_TAGS) - 1; i++) {
-        if (tags[i].persistent == MICRODVD_PERSISTENT_OPENED)
-            continue;
-        switch (tags[i].key) {
-        case 'Y':
-        case 'y':
-            for (int sidx = 0; sidx < sizeof(MICRODVD_STYLES) - 1; sidx++)
-                if (tags[i].data1 & (1 << sidx))
-                    append_text(new_line, "{\\%c1}", MICRODVD_STYLES[sidx]);
-            break;
-
-        case 'c':
-            append_text(new_line, "{\\c&H%06X&}", tags[i].data1);
-            break;
-
-        case 'f':
-            append_text(new_line, "{\\fn%.*s}", BSTR_P(tags[i].data_string));
-            break;
-
-        case 's':
-            append_text(new_line, "{\\fs%d}", tags[i].data1);
-            break;
-
-        case 'p':
-            if (tags[i].data1 == 0)
-                append_text(new_line, "{\\an8}");
-            break;
-
-        case 'o':
-            append_text(new_line, "{\\pos(%d,%d)}",
-                        tags[i].data1, tags[i].data2);
-            break;
-        }
-        if (tags[i].persistent == MICRODVD_PERSISTENT_ON)
-            tags[i].persistent = MICRODVD_PERSISTENT_OPENED;
-    }
-}
-
-static void microdvd_close_no_persistent_tags(struct line *new_line,
-                                              struct microdvd_tag *tags)
-{
-    int i;
-
-    for (i = sizeof(MICRODVD_TAGS) - 2; i; i--) {
-        if (tags[i].persistent != MICRODVD_PERSISTENT_OFF)
-            continue;
-        switch (tags[i].key) {
-
-        case 'y':
-            for (int sidx = sizeof(MICRODVD_STYLES) - 2; sidx >= 0; sidx--)
-                if (tags[i].data1 & (1 << sidx))
-                    append_text(new_line, "{\\%c0}", MICRODVD_STYLES[sidx]);
-            break;
-
-        case 'c':
-            append_text(new_line, "{\\c}");
-            break;
-
-        case 'f':
-            append_text(new_line, "{\\fn}");
-            break;
-
-        case 's':
-            append_text(new_line, "{\\fs}");
-            break;
-        }
-        tags[i].key = 0;
-    }
-}
-
-static void convert_microdvd(const char *orig, char *dest, int dest_buffer_size)
-{
-    /* line is not const to avoid warnings with strtol, etc.
-     * orig content won't be changed */
-    char *line = (char *)orig;
-    struct line new_line = {
-        .buf = dest,
-        .bufsize = dest_buffer_size,
-    };
-    struct microdvd_tag tags[sizeof(MICRODVD_TAGS) - 1] = {{0}};
-
-    while (*line) {
-        line = microdvd_load_tags(tags, line);
-        microdvd_open_tags(&new_line, tags);
-
-        while (*line && *line != '|')
-            new_line.buf[new_line.len++] = *line++;
-
-        if (*line == '|') {
-            microdvd_close_no_persistent_tags(&new_line, tags);
-            append_text(&new_line, "\\N");
-            line++;
-        }
-    }
-    new_line.buf[new_line.len] = 0;
-}
-
-static const char *const microdvd_ass_extradata =
-    "[Script Info]\n"
-    "ScriptType: v4.00+\n"
-    "PlayResX: 384\n"
-    "PlayResY: 288\n";
-
-static bool supports_format(const char *format)
-{
-    return format && strcmp(format, "microdvd") == 0;
-}
-
-static int init(struct sd *sd)
-{
-    sd->output_codec = "ass-text";
-    sd->output_extradata = (char *)microdvd_ass_extradata;
-    sd->output_extradata_len = strlen(sd->output_extradata);
-    return 0;
-}
-
-static void decode(struct sd *sd, struct demux_packet *packet)
-{
-    char dest[SD_MAX_LINE_LEN];
-    // Assume input buffer is padded with 0
-    convert_microdvd(packet->buffer, dest, sizeof(dest));
-    sd_conv_add_packet(sd, dest, strlen(dest), packet->pts, packet->duration);
-}
-
-const struct sd_functions sd_microdvd = {
-    .name = "microdvd",
-    .supports_format = supports_format,
-    .init = init,
-    .decode = decode,
-    .get_converted = sd_conv_def_get_converted,
-    .reset = sd_conv_def_reset,
-};
diff --git a/wscript_build.py b/wscript_build.py
index 148f59d5d9..ccc991dd16 100644
--- a/wscript_build.py
+++ b/wscript_build.py
@@ -260,7 +260,6 @@ def build(ctx):
         ( "sub/sd_ass.c",                        "libass" ),
         ( "sub/sd_lavc.c" ),
         ( "sub/sd_lavc_conv.c" ),
-        ( "sub/sd_microdvd.c" ),
         ( "sub/sd_srt.c" ),
 
         ## Video