For comparison, following a question elsewhere, I extracted from https://wikitech.wikimedia.org/wiki/Analytics/Data/Mediacounts a list of wav/flac/ogg files with at least 5 usages and 1 MB transferred in a random day, see http://koti.kapsi.fi/~federico/tmp/mediacounts-audio-top.2015-07-27.v00.csv
Top 10 by transfer:
/wikipedia/commons/7/7f/Facebook.ogg 46534382349 3210 /wikipedia/commons/0/0d/Hino-Nacional-Brasil-instrumental-mec.ogg 33898670098 4062 /wikipedia/commons/6/65/Star_Spangled_Banner_instrumental.ogg 27888811944 8686 /wikipedia/commons/d/d7/Youtube_spoken_word.ogg 24180292370 2105 /wikipedia/commons/5/59/The_Stars_and_Stripes_Forever_-_U.S._Navy_Band.ogg 24120357844 2853 /wikipedia/commons/5/5b/Ludwig_van_Beethoven_-_Symphonie_5_c-moll_-_1._Allegro_con_brio.ogg 23016515737 3368 /wikipedia/commons/b/be/Toccata_et_Fugue_BWV565.ogg 20744014775 3531 /wikipedia/commons/f/f2/On_Craftsmanship_-_the_only_surviving_recording_of_Virginia_Woolf.flac 19445080418 5140 /wikipedia/commons/0/02/National_Anthem_of_Russia_(2000)%2C_three_verses.ogg 18796074983 2309 /wikipedia/commons/9/99/Wolfgang_Amadeus_Mozart_-_Symphony_40_g-moll_-_1._Molto_allegro.ogg 17610053995 1910
Nemo
Brian Wolff, 26/07/2015 22:06:
So I just recently discovered that WMF is now publishing stats for media files.
So in terms of most popular videos, it seems to be mostly space and porn. (This list is url of file minus the https://upload.wikimedia.org part then a comma, then the number of downloads on 2015-07-25)
/wikipedia/commons/9/92/Cynopterus_sphinx_fellatio_no_music.ogg,58270 /wikipedia/commons/c/cc/Andromeda_and_Milky_Way_collision.ogg,2036 /wikipedia/commons/f/fa/Ejaculation_Educational_Demonstration.OGG,1819 /wikipedia/commons/4/4b/Erection_development_animated.ogv,1035 /wikipedia/commons/e/e0/A_handjob_video.ogv,981 /wikipedia/commons/7/73/Male_masturbation_followed_by_ejaculation.ogv,928 /wikipedia/commons/6/64/Agenor_fait_un_levage.ogv,811 /wikipedia/commons/9/94/Debbie_Does_Dallas.ogg,750 /wikipedia/commons/4/4f/Tourette's_tic_long_medium_192kbps.OGG,740 /wikipedia/commons/c/c5/Spontaneous-Ejaculation-in-a-Wild-Indo-Pacific-Bottlenose-Dolphin-(Tursiops-aduncus)-pone.0072879.s001.ogv,648 /wikipedia/commons/3/31/L'heure_du_th%C3%A9.ogv,634 /wikipedia/commons/3/31/Ziteil%2C_aerial_video_with_interior_view.webm,617 /wikipedia/commons/e/ef/Speedsolving_a_3%C3%973%C3%973_Rubik's_Cube_with_Fridrich_Method.ogg,602 /wikipedia/commons/3/3a/Condom_placement_demonstration.ogv,582 /wikipedia/commons/1/12/Hypospadias_penis_masturbation.webm,578 /wikipedia/commons/5/58/Ap17-ascent.ogg,566 /wikipedia/commons/3/3e/Massages.ogv,510 /wikipedia/commons/8/83/Elephants_Dream_(high_quality).ogv,496 /wikipedia/commons/c/c3/Miss_Butterfly.ogv,496 /wikipedia/commons/3/3d/Simulaci%C3%B3n_Tsunami.ogv,480 /wikipedia/commons/6/67/Pentagon_Security_Camera_1.ogv,476 /wikipedia/commons/0/0e/Jupiter_from_Voyager_1_PIA02855_thumbnail_300px_max_quality.ogv,466 /wikipedia/commons/9/94/A11v_1092338.ogg,446 /wikipedia/commons/c/cb/A_male_masturbating_with_lubricant.ogv,427 /wikipedia/commons/b/bc/Female-masturbation-electric-massager.ogv,418
See more at https://dpaste.de/Yuym
This comes from the top1000 csv zip files at http://dumps.wikimedia.org/other/mediacounts/daily/2015/, using the mediacounts.2015-07-25.v00.sorted_key17.csv file.
Anyways, thought it would be interesting to this list.