*Learnings*
MP3 is fully called as MPEG(MoviePictureExpertsGroup)1Layer3,graded as MPEG -1.It was invented for the convenience of data transmission in sound quality performance by decreasing the storage of the file.
Storage expanded:CF card,SM card,MMC card, and SD card are available for storage expanded,which will be chosen according to the types of MP3.CF card is oldest one,and right now is seldom used beause of its big volume and big spoilage.SM card is widely used in MP3 world,but not popluar in nowadays.MMC card is the smallest Flash Memory storage card.High pricing has prevented its fast spread in MP3 line.SD card is from MMC card,and it supports the performances of MMC card.Instead,MMC card is not supporting SD card.
Memory stick is adopted by Sony,which cannot be seen in other branded MP3.
TFT(Thin Film Transistor):
Thin Film Transistor is simplified as TFT.TFT is one kind of AM-LCD and better than STN in color saturation,but in large power spoilage.65K color TFT screen in MP3 is very popular in current market.
ID3 information:ID3 is a managing function for music name,author,singer and others.It is for convenience. "Alt+3" in Winamp is the key to revise the ID3 original information.
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