The aim of our project is to meet the need of video monitoring hard disk recorder in which a video codec system based on MPEG-4 is applied .

本课题的研究目的是针对 视频监控 硬盘 录像机应用的需要， 研制并开发出一套基于MPEG-4标准的实时视频编码系统。

My video disk recorder is in the DVD format and can play both DVDs and VCDs .

我家的 视盘 机是dvd格式的，既能播放dvd又能播放VCD。