GOM Player
This are free media player with the popular video and 
audio player. this player gave clear audio and video.
Which support any formet liks that (XviD, DivX, FLV1, AC3, OGG, MP4, H263 and more) etc.
  
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src:-download.cnet.com


Featurs:-

  • Download latest version.
  • Any formet support (XviD, DivX, FLV1, AC3, OGG, MP4, H263 and more) etc.
  • Dual support player liks audio and Video for any formet.
  • Give good quality very easy work on this player.
  • Power full subtitels support liks SMI, SRT, RT, SUB(with IDX) files for subtitle. You can even synchronize subtitle and video if there's any mismatch.