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                                                                                                What is F4V? 
DVD uses Mpeg2 
Blu-ray Disc uses H.264 compression Mpeg4 
F4V container file format for Adobe Flash Player that uses Mpeg4 H.264 compression 
F4V = H.264 = MP4 = Blu-ray 
 
WMV vs H.264 compression 
H.264 is superior to WMV. H.264 has better compression/quality per size ratio vs WMV which is why portable media player like Zune HD & Iphone and online streaming movies and shows like iTune & DirectTV uses H.264 Mpeg4. If you compare the same bitrate MP4 vs WMV, the picture quality will be better on the H.264 Mpeg4. 
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                                            10-23-09  07:00am 
                                                 
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