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Dec.30,2010With the popularity of IT market steadily rising, MP4 is also gradually accepted by consumers and becomes a mainstream. There are more and more Mp4 digital products manufacturers, so how to correctly choose and buy Mp4 products becomes the key point that everyone wants to know.
Being a fancier of digital products for many years, today I will be honored to introduce how to choose and buy MP4 products and share my some experience, hoping to give help for everyone in the purchase of MP4.
Video
It is well-known that VCD adopts -1 encoding while DVD uses MPEG-2 coding, the image quality is relatively good and video source can obtain easily. All of these benefit us not to easily create the eye fatigue while watching TV. In some extent, our eyes are gotten some protection. Thus, we should choose and buy Mp4 which can play multiple formats of video and reflect video format compatible products ability.
Screen
Color number is the important measure index for MP4 display effect. Color number is the maximum total number of the screen that can show. Theoretically, the more color shows, the more screen displays. Besides, the effect is also better. Give a simple example, MP4 using 6.5 million screen and the one adopting 16 million color screen are playing the same video , the former one is an obvious color piece and color is uneven as well as curt transition, which has a bad impact on the video playback. However, the latter presents a more realistic playback because of its higher color number screen. Current mainstream of MP4 screen basically has 3 kinds, such as 6.5 million, 26 million color or 1.6 billion color. Among all these three kinds, 1.60 billion color screen effect is the most excellent one. Hereby, I recommend consumers buying MP4 with 1.6 billion color screen, such product’;s quality and effect are assured.
Resolution ratio
The higher resolution ratio the MP4 has, the more images we can see clearly. At present, the mainstream of MP4’;s display resolution is QVGA (320 x 240), VGA ($64 x 48) and D1 (720 * 480). For MP4, high resolution plays an important role in video output quality. High resolution can show exquisite and audiovisual video effect.
Battery
The core function of MP4 is video playback. One high-performance lithium battery can ensure enough playing time when it plays. For this point, we suggest that consumers should buy those products with large-scale and better public praise brands. Regardless from materials and workmanship or other aspects, a well-known brand is trustworthy. At the same time, the evaluations of the buyers on the net are also very important.
USB interface
At present, USB interface is with points of full USB 2.0 and high-speed USB 2.0. The former is the past USB 1.1 standard. Currently, many descriptions of many brands in the market are vague, which will not obviously distinguish them and have suspicions of misdirecting consumers. USB interface is related to high-speed transmission. A bad one will make you dismal when you transmit files at a slow speed. Therefore, we should pay more attention to the USB interface when we choose and buy MP4.
Are these tips helpful for you? How about hands-on learning? Maybe you will get benefit from these useful tips.
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