RM是与RealPlayer程序结合使用的视频容器格式。该格式包含音频或视频数据或指向流媒体文件的链接。RM通常用于在Internet上传输内容，因此对于Internet广播和Internet视频非常重要。
RM is video container format which is used in conjunction with the program RealPlayer. The format contains audio or video data or a link to a streaming media file. RM is commonly used for streaming content over the Internet and is therefore very important for Internet radio and Internet videos.
