In the file

/etc/mailcap 

are stored different mime file types like

application/vnd.oasis.opendocument.graphics; application/vnd.oasis.opendocument.graphics-template; application/vnd.oasis.opendocument.presentation; application/vnd.oasis.opendocument.presentation-template; text/plain; application/vnd.sun.xml.draw; application/vnd.sun.xml.draw.template; application/vnd.sun.xml.impress; application/vnd.sun.xml.impress.template; audio/midi; audio/x-midi; audio/mod; application/x-troff-man; text/troff; application/x-troff-man; text/troff; text/html; application/x-troff-man; text/troff; application/x-info; audio/mpeg; application/pdf; application/x-pdf; text/pdf; text/x-pdf; image/pdf; image/x-pdf; audio/midi; audio/x-midi; audio/mod; application/x-bittorrent; text/plain; image/avs; image/bie; image/x-ms-bmp; image/cmyk; image/dcx; image/eps; image/fax; image/fits; image/gif; image/gray; image/jpeg; image/pjpeg; image/miff; image/mono; image/mtv; image/x-portable-bitmap; image/pcd; image/pcx; image/pdf; image/x-portable-graymap; image/pict; image/png; image/x-portable-anymap; image/x-portable-pixmap; image/ps; image/rad; image/x-rgb; image/rgba; image/rla; image/rle; image/sgi; image/sun-raster; image/targa; image/tiff; image/uyvy; image/vid; image/viff; image/x-xbitmap; image/x-xpixmap; image/x-xwindowdump; image/x-icon; image/yuv; text/plain; text/html; text/xml; application/xhtml+xml; application/xml; application/rss+xml; application/rdf+xml; image/gif; image/jpeg; image/png; x-scheme-handler/http; x-scheme-handler/https; x-scheme-handler/ftp; x-scheme-handler/chrome; video/webm; application/x-xpinstall; application/pkcs12; application/pkcs12+pem; application/pkcs7-mime; application/pkcs7-mime+pem; application/pkcs8; application/pkcs8+pem; application/pkix-cert; application/pkix-cert+pem; application/pkix-crl; application/pkix-crl+pem; application/x-pem-file; application/x-pem-key; application/x-pkcs12; application/x-pkcs7-certificates; application/x-x509-ca-cert; application/x-x509-user-cert; application/pkcs10; application/pkcs10+pem; application/x-spkac; application/x-spkac+base64; x-scheme-handler/telnet; x-scheme-handler/rlogin; x-scheme-handler/ssh; application/vnd.openofficeorg.extension; x-scheme-handler/vnd.libreoffice.cmis; application/vnd.oasis.opendocument.text-flat-xml; application/vnd.oasis.opendocument.spreadsheet-flat-xml; application/vnd.oasis.opendocument.graphics-flat-xml; application/vnd.oasis.opendocument.presentation-flat-xml; image/bmp; image/gif; image/jpeg; image/jpg; image/png; image/tiff; image/x-bmp; image/x-pcx; image/x-tga; image/x-portable-pixmap; image/x-portable-bitmap; image/x-targa; image/x-portable-greymap; application/pcx; image/svg+xml; image/svg-xml; application/x-gameboy-rom; application/x-gba-rom; application/x-genesis-rom; application/x-nes-rom; application/x-sms-rom; application/x-snes-rom; application/ogg; application/x-ogg; application/mxf; application/sdp; application/smil; application/x-smil; application/streamingmedia; application/x-streamingmedia; application/vnd.rn-realmedia; application/vnd.rn-realmedia-vbr; audio/aac; audio/x-aac; audio/vnd.dolby.heaac.1; audio/vnd.dolby.heaac.2; audio/aiff; audio/x-aiff; audio/m4a; audio/x-m4a; application/x-extension-m4a; audio/mp1; audio/x-mp1; audio/mp2; audio/x-mp2; audio/mp3; audio/x-mp3; audio/mpeg; audio/mpeg2; audio/mpeg3; audio/mpegurl; audio/x-mpegurl; audio/mpg; audio/x-mpg; audio/rn-mpeg; audio/musepack; audio/x-musepack; audio/ogg; audio/scpls; audio/x-scpls; audio/vnd.rn-realaudio; audio/wav; audio/x-pn-wav; audio/x-pn-windows-pcm; audio/x-realaudio; audio/x-pn-realaudio; audio/x-ms-wma; audio/x-pls; audio/x-wav; video/mpeg; video/x-mpeg2; video/x-mpeg3; video/mp4v-es; video/x-m4v; video/mp4; application/x-extension-mp4; video/divx; video/vnd.divx; video/msvideo; video/x-msvideo; video/ogg; video/quicktime; video/vnd.rn-realvideo; video/x-ms-afs; video/x-ms-asf; audio/x-ms-asf; application/vnd.ms-asf; video/x-ms-wmv; video/x-ms-wmx; video/x-ms-wvxvideo; video/x-avi; video/avi; video/x-flic; video/fli; video/x-flc; video/flv; video/x-flv; video/x-theora; video/x-theora+ogg; video/x-matroska; video/mkv; audio/x-matroska; application/x-matroska; video/webm; audio/webm; audio/vorbis; audio/x-vorbis; audio/x-vorbis+ogg; video/x-ogm; video/x-ogm+ogg; application/x-ogm; application/x-ogm-audio; application/x-ogm-video; application/x-shorten; audio/x-shorten; audio/x-ape; audio/x-wavpack; audio/x-tta; audio/AMR; audio/ac3; audio/eac3; audio/amr-wb; video/mp2t; audio/flac; audio/mp4; application/x-mpegurl; video/vnd.mpegurl; application/vnd.apple.mpegurl; audio/x-pn-au; video/3gp; video/3gpp; video/3gpp2; audio/3gpp; audio/3gpp2; video/dv; audio/dv; audio/opus; audio/vnd.dts; audio/vnd.dts.hd; audio/x-adpcm; application/x-cue; audio/m3u; application/x-java-archive; application/java-archive; application/x-jar; application/x-tar; application/x-compressed-tar; application/x-bzip-compressed-tar; application/x-tarz; application/x-xz-compressed-tar; application/x-lzma-compressed-tar; application/x-lzip-compressed-tar; application/x-tzo; application/x-lrzip-compressed-tar; application/x-lz4-compressed-tar; application/x-zstd-compressed-tar; application/vnd.debian.binary-package; application/x-deb; application/x-cd-image; application/x-bcpio; application/x-cpio; application/x-cpio-compplication/vnd.oasis.opendocument.graphics; application/vnd.oasis.opendocument.graphics-template; application/vnd.oasis.opendocument.presentation; application/vnd.oasis.opendocument.presentation-template; text/plain; application/vnd.sun.xml.draw; application/vnd.sun.xml.draw.template; application/vnd.sun.xml.impress; application/vnd.sun.xml.impress.template; audio/midi; audio/x-midi; audio/mod; application/x-troff-man; text/troff; application/x-troff-man; text/troff; pressed; application/x-sv4cpio; application/x-sv4crc; application/x-rpm; application/x-source-rpm; application/vnd.ms-cab-compressed; application/x-xar; application/x-iso9660-appimage; application/x-archive; application/vnd.rar; application/x-rar; application/x-7z-compressed; application/zip; application/x-java-archive; application/x-compress; application/gzip; application/x-bzip; application/x-lzma; application/x-xz; inode/directory; application/x-deb; application/x-debian-package; text/x-apt-sources-list; text/x-apt-sources-list; x-scheme-handler/steam; x-scheme-handler/mailto; application/x-xpinstall; text/english; text/plain; text/x-makefile; text/x-c++hdr; text/x-c++src; text/x-chdr; text/x-csrc; text/x-java; text/x-moc; text/x-pascal; text/x-tcl; text/x-tex; application/x-shellscript; text/x-c; text/x-c++; application/x-virtualbox-vbox; application/x-virtualbox-vbox-extpack; application/x-virtualbox-ovf; application/x-virtualbox-ova; text/plain; application/vnd.ms-powerpoint.presentation.macroEnabled.12; application/vnd.ms-powerpoint.slideshow.macroEnabled.12; application/vnd.ms-powerpoint.template.macroEnabled.12; application/vnd.openxmlformats-officedocument.presentationml.presentation; application/vnd.openxmlformats-officedocument.presentationml.slideshow; application/vnd.openxmlformats-officedocument.presentationml.template; application/vnd.ms-powerpoint; application/zip; text/plain; image/avs; image/bie; image/x-ms-bmp; image/cmyk; image/dcx; image/eps; image/fax; image/fits; image/gif; image/gray; image/jpeg; image/pjpeg; image/miff; image/mono; image/mtv; image/x-portable-bitmap; image/pcd; image/pcx; image/pdf; image/x-portable-graymap; image/pict; image/png; image/x-portable-anymap; image/x-portable-pixmap; image/ps; image/rad; image/x-rgb; image/rgba; image/rla; image/rle; image/sgi; image/sun-raster; image/targa; image/tiff; image/uyvy; image/vid; image/viff; image/x-xbitmap; image/x-xpixmap; image/x-xwindowdump; image/x-icon; image/yuv; application/x-troff-man; text/troff; text/*; text/*; application/x-info; application/x-tar; application/x-gtar; application/x-ustar; text/*; text/*; application/vnd.debian.binary-package; 

Are this all? Or depends it What programs are on my System?

I’m asking because I miss

x-content/video-dvd 

Debian wiki