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I've been sent an .ogv file by a video company that's 4 times the file size of the equivalent MP4 file. I suspect they've encoded it at way too high a bitrate, but I'd like to check for sure.

I'm on Windows 7 (64bit) but have other OSes (e.g. Mac OS 10.8.5) available too.

I've tried using the 'media information' window in VLC media player - but for some reason that only shows the bitrate of the audio stream, not the video stream!

I've also tried installing the XIPH Directshow filters in the hope that this might make Win7 show the encoding detail in Windows Explorer or via Media Player, like it does for MP4 files - but no joy.

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You can install ffmpeg for windows

Use it like this

ffmpeg.exe -i file.ogg

Output will be like this

ffmpeg version N-56980-g1ab9f32 Copyright (c) 2000-2013 the FFmpeg developers
  built on Oct  8 2013 18:02:10 with gcc 4.8.1 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aa
cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavp
ack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
  libavutil      52. 46.101 / 52. 46.101
  libavcodec     55. 35.100 / 55. 35.100
  libavformat    55. 19.100 / 55. 19.100
  libavdevice    55.  4.100 / 55.  4.100
  libavfilter     3. 88.101 /  3. 88.101
  libswscale      2.  5.101 /  2.  5.101
  libswresample   0. 17.103 /  0. 17.103
  libpostproc    52.  3.100 / 52.  3.100
[ogg @ 023eb3c0] Broken file, keyframe not correctly marked.
Input #0, ogg, from 'file.ogg':
  Duration: 00:00:30.58, start: 0.000000, bitrate: 501 kb/s
    Stream #0:0: Video: theora, yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 29.97 fps,
 29.97 tbr, 29.97 tbn, 29.97 tbc
    Stream #0:1: Audio: vorbis, 44100 Hz, stereo, fltp, 128 kb/s
    Metadata:
      ENCODER         : VLC media player
At least one output file must be specified

The bitrate is at the line

Duration: 00:00:30.58, start: 0.000000, bitrate: 501 kb/s

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