![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEie76_jsX3yac5_u9q0753t-vJqIJ18oMpNIVH0OfOoMvk39Y0vQMWKT8W8W0MWuXTo-zhANFei65IZ3CXbGNBih08dH2Ml76UYp6P6dWB4dN5KfJ3gwZgPHR0xxHMUu5gdJUG1p7wJ8OxP/s320/Ultracker_1CH.JPG)
What is the difference between MPEG-4 & H.264? A rough answer is that video quality of latter is more beautiful, file size is smaller, and transmit speed is faster. It is easy to evaluate file size & transmit speed, but is it hard for amateur to distinguish video quality. In short, the smallest video block size of MPEG-4 is 8 x 8 pixel, but it of H.264 is 4 x 4 pixel. Therefore, edge is processed sharply.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkeDC27gPpWhdq8Otg7b8nvvPJYd5JScKjD0ZCS8k8EtQU5Gx3ultePaPGYEOb6FkR1vPygGf1uves75a79TsB506OG7wGX7KUxdyZzMAGxNbvYY5Fw7oTz4Th9zsTe8gG33WPf8YPZ8vF/s320/Neotech_MPEG4_1CH_5.JPG)
As for image of MPEG-4, because its video block it four times bigger (8 / 4 = 2; 2 x 2 = 4), the color of edge would be illusively smeared. It reminds A-Mao of French impressionist painting.
Impression, Sunrise of Claude Monet
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