现在市面上有很多类似的产品了，当中也有HIEND产品，就像英国CHORD的Media Engine，还有下面这台剑桥的Azur 640H等等。。。
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Azur 640H features
Simple on-screen user interface
160Gb hard drive allowing over 3,000 uncompressed songs or 30,000 compressed songs can be stored.
Music compilations can be burnt on to CD from your AudioFile library for use in your home or car.
MP3
AAC (MP4)
wav .snd .mpa .mp2 .mp3 and many other common music files also supported.
