motion cam files 移动摄影文件
motion camera files 影片文件
synthetic motion data files 合成运动数据
motion files
移动文件
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Unlike most other portable media players on the market, the device will play EPAC files instead of MP3 (Motion Picture Experts Group, Audio Layer 3) files, the companies said.
CNN: Lucent's digital music player to challenge MP3
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