Can't play media file on webpage? (Blackberry Torch 9850)

FULL PHONE SPECS: Blackberry Torch 9850

CAUSES

-Unsupported file format

-Missing plugins

- Outdated plugins

SOLUTION

-Ensure that the media file you are trying to play is supported by your device

- Ensure that all necessary plugins are installed

- Ensure that all necessary plugins are duly updated.