The list of 2-character language codes supported by bdsup2sub:

    de - German
    en - English
    fr - French
    it - Italian
    es - Spanish
    ab - Abkhazian
    aa - Afar
    af - Afrikaans
    sq - Albanian
    am - Amharic
    ar - Arabic
    an - Aragonese
    hy - Armenian
    as - Assamese
    av - Avaric
    ae - Avestan
    ay - Aymara
    az - Azerbaijani
    bm - Bambara
    ba - Bashkir
    eu - Basque
    be - Belarusian
    bn - Bengali
    bh - Bihari
    bi - Bislama
    bs - Bosnian
    br - Breton
    bg - Bulgarian
    my - Burmese
    km - Cambodian
    ca - Catalan
    ch - Chamorro
    ce - Chechen
    ny - Chichewa
    zh - Chinese
    cv - Chuvash
    kw - Cornish
    co - Corsican
    cr - Cree
    hr - Croatian
    cs - Czech
    da - Danish
    dv - Divehi
    dz - Dzongkha
    nl - Dutch
    eo - Esperanto
    et - Estonian
    ee - Ewe
    fo - Faroese
    fj - Fiji
    fi - Finnish
    fy - Frisian
    ff - Fulah
    gd - Gaelic
    gl - Galician
    lg - Ganda
    ka - Georgian
    el - Greek
    kl - Greenlandic
    gn - Guarani
    gu - Gujarati
    ht - Haitian
    ha - Hausa
    he - Hebrew
    hz - Herero
    hi - Hindi
    ho - Hiri Motu
    hu - Hungarian
    is - Icelandic
    io - Ido
    ig - Igbo
    id - Indonesian
    ia - Interlingua
    ie - Interlingue
    ik - Inupiaq
    iu - Inuktitut
    ga - Irish
    ja - Japanese
    jv - Javanese
    kn - Kannada
    kr - Kanuri
    ks - Kashmiri
    kk - Kazakh
    ki - Kikuyu
    rw - Kinyarwanda
    ky - Kirghiz
    kv - Komi
    kg - Kongo
    ko - Korean
    kj - Kuanyama
    ku - Kurdish
    lo - Lao
    la - Latin
    lv - Latvian
    li - Limburgan
    ln - Lingala
    lt - Lithuanian
    lu - Luba
    lb - Luxembourgish
    mk - Macedonian
    mg - Malagasy
    ms - Malay
    ml - Malayalam
    mt - Maltese
    mh - Marshallese
    gv - Manx
    mi - Maori
    mr - Marathi
    mn - Mongolian
    na - Nauru
    nv - Navajo
    nd - Ndebele
    ng - Ndonga
    ne - Nepali
    no - Norwegian
    oc - Occitan
    oj - Ojibwa
    or - Oriya
    om - Oromo
    os - Ossetian
    pi - Pali
    pa - Panjabi
    ps - Pashto
    fa - Persian
    pl - Polish
    pt - Portuguese
    qu - Quechua
    rm - Romansh
    ro - Romanian
    rn - Rundi
    ru - Russian
    se - Sami
    sm - Samoan
    sg - Sango
    sa - Sanskrit
    sc - Sardinian
    sr - Serbian
    sn - Shona
    ii - Sichuan Yi
    sd - Sindhi
    si - Sinhalese
    cu - Slavonic
    sk - Slovak
    sl - Slovenian
    so - Somali
    st - Sotho
    su - Sundanese
    sw - Swahili
    ss - Swati
    sv - Swedish
    tl - Tagalog
    ty - Tahitian
    tg - Tajik
    ta - Tamil
    tt - Tatar
    te - Telugu
    th - Thai
    bo - Tibetan
    ti - Tigrinya
    to - Tonga
    ts - Tsonga
    tn - Tswana
    tr - Turkish
    tk - Turkmen
    tw - Twi
    ug - Uighur
    uk - Ukrainian
    ur - Urdu
    uz - Uzbek
    ve - Venda
    vi - Vietnamese
    vo - Volapük
    cy - Welsh
    wa - Walloon
    wo - Wolof
    xh - Xhosa
    yi - Yiddish
    yo - Yoruba
    za - Zhuang
    zu - Zulu
