1. Support a variety of acoustic formats: including music formats such as MP1, MP2, MP3and WAV, etc. 2. Unique MTV movie function: it is capable of playing MTV movies and music. 3. JPEG image browse function 4. Firmware upgrading function: the latest upgrading software can be downloaded on the Internet to implement the function expansion of this unit. 5. FM stereophonic radio: with the powerful automatic search radio stations and manual search radio station functions, it can store as many as 30 (20 for each system) different local radio stations of different frequencies so as to allow you to listen to radio programs freely. 6. U-disc Function free of Drives: without management programs, you can directly operate files by means of Moving Disc un My Computer. You will not have to install any drive programs in WIN2000 or over. 7.Alien Space disc mode: by using the tools attached to this unit, you may divide disc of this unit into two, and encrypt one of them to conceal the space, so that this enciphered part will not be seen or read by others. In this way you may hide your secrets! 8. Record/Replay: you may record and save it as the voice file in a format of WAV and ACT, and you may select section replay or contrast replay to implement the digital replay function in a real sense. 9. 7 kinds of acoustic equalizers: natural, rock, popular, classical, soft, jazz and DBB 10. Multiple playing modes: normal, repeat one, folder, repeat folder, repeat all, random, intro.