diff --git a/doc/man/po4a/po/bg.po b/doc/man/po4a/po/bg.po
index 98cda519a..43a9d3e5f 100644
--- a/doc/man/po4a/po/bg.po
+++ b/doc/man/po4a/po/bg.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: MKVToolNix\n"
 "POT-Creation-Date: 2021-05-23 17:51+0200\n"
-"PO-Revision-Date: 2021-06-26 21:24+0000\n"
+"PO-Revision-Date: 2021-06-28 10:19+0000\n"
 "Last-Translator: Симеон Цветков <sicvetkov@uni-sofia.bg>\n"
 "Language-Team: Bulgarian (http://www.transifex.com/moritz-bunkus/mkvtoolnix/language/bg/)\n"
 "Language: bg\n"
@@ -1661,7 +1661,7 @@ msgstr ""
 #. type: Content of: <refentry><refsect1><refsect2><variablelist><varlistentry><listitem><para>
 #: doc/man/mkvmerge.xml:198
 msgid "The language set with this option is also used when chapters are generated with the <link linkend=\"mkvmerge.description.generate_chapters\"><option>--generate-chapters</option> option</link>."
-msgstr ""
+msgstr "Езикът, зададен с тази опция, също се използва и при генериране на епизоди с опцията <link linkend=\"mkvmerge.description.generate_chapters\"><option>--generate-chapters</option></link>."
 
 #. type: Content of: <refentry><refsect1><refsect2><variablelist><varlistentry><term>
 #: doc/man/mkvmerge.xml:205
@@ -1698,7 +1698,7 @@ msgstr ""
 #: doc/man/mkvmerge.xml:236
 #: doc/man/mkvmerge.xml:1354
 msgid "Defaults: no manual sync correction (which is the same as <parameter>d</parameter> = <constant>0</constant> and <parameter>o</parameter>/<parameter>p</parameter> = <constant>1.0</constant>)."
-msgstr ""
+msgstr "По подразбиране: без ръчна корекция на синхронизацията (което съответства на <parameter>d</parameter> = <constant>0</constant> и <parameter>o</parameter>/<parameter>p</parameter> = <constant>1.0</constant>)."
 
 #. type: Content of: <refentry><refsect1><refsect2><variablelist><varlistentry><listitem><para>
 #: doc/man/mkvmerge.xml:241
@@ -1724,12 +1724,12 @@ msgstr "<option>--generate-chapters</option> <parameter>режим</parameter>"
 #. type: Content of: <refentry><refsect1><refsect2><variablelist><varlistentry><listitem><para>
 #: doc/man/mkvmerge.xml:250
 msgid "&mkvmerge; can create chapters automatically.  The following two modes are currently supported:"
-msgstr ""
+msgstr "&mkvmerge; може автоматично да създава епизоди. Към момента се поддържат следните два режима:"
 
 #. type: Content of: <refentry><refsect1><refsect2><variablelist><varlistentry><listitem><itemizedlist><listitem><para>
 #: doc/man/mkvmerge.xml:256
 msgid "'<literal>when-appending</literal>' – This mode creates one chapter at the start and one chapter whenever a file is appended."
-msgstr ""
+msgstr "„<literal>when-appending</literal>“ – Този режим създава епизод в началото и по един епизод за всеки разширяващ файл."
 
 #. type: Content of: <refentry><refsect1><refsect2><variablelist><varlistentry><listitem><itemizedlist><listitem><para>
 #: doc/man/mkvmerge.xml:260