Difference fields and descent of difference varieties

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mpeg4
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MPEG-4 Video (360p quality for download)   -   download
File size: 865.07 MB
Width: 480, Height: 360
Duration: 1 hour 2 mins 29 secs
Frame rate: 25.0 fps, Sample rate: 44100 Hz
Average bitrate: 1.84 Mbits/sec
webm
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WebM (360p quality for download)   -   download
File size: 564.43 MB
Width: 450, Height: 360
Duration: 1 hour 2 mins
Frame rate: 25.0 fps, Sample rate: 44100 Hz
Average bitrate: 1.21 Mbits/sec
flv
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Flash Video (high quality for streaming)   -   download
File size: 369.60 MB
Width: 480, Height: 360
Duration: 1 hour 2 mins 31 secs
Frame rate: 25.0 fps, Sample rate: 44100 Hz
Average bitrate: 807.19 kbits/sec
ipod
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iPod Video (high quality for download)   -   download
File size: 231.33 MB
Width: 480, Height: 360
Duration: 1 hour 2 mins 31 secs
Frame rate: 25.0 fps, Sample rate: 44100 Hz
Average bitrate: 505.21 kbits/sec
mov
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QuickTime (high quality for download)   -   download
File size: 388.50 MB
Width: 384, Height: 288
Duration: 1 hour 2 mins 31 secs
Frame rate: 25.0 fps, Sample rate: 44100 Hz
Average bitrate: 848.45 kbits/sec
mp3
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MP3 (high quality for download)   -   download
File size: 57.02 MB
Duration: 1 hour 2 mins 17 secs
Sample rate: 44100 Hz
Average bitrate: 125.0 kbits/sec
wmv
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Windows Media Video (high quality for download)   -   download
File size: 218.34 MB
Duration: 1 hour 2 mins 31 secs
Sample rate: 44100 Hz
Average bitrate: 476.84 kbits/sec