Video surfaces of Chris Cornell's last performance
![a](/web/20170523041235im_/http://www.smh.com.au/content/dam/images/g/w/8/c/x/c/image.related.wideLandscape.220x124.4u4v1.png/1495147044867.jpg)
- Video duration
- 01:34
With the developer of the MP3 declaring it 'dead' this week, we look back at the format that changed how we listen to music.
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