Videoclips were initially offered using only three formats: "modem quality" (28.8 Kbits/sec); "broadband quality" (about 100 Kbits/sec); and a "progressive download" format.
最初只使用三种格式：“调制解调器质量”（28.8Kb/s）、“宽带质量”（约 100 Kb/s）和“渐进下载”格式来提供视频片段。
As a result, you can create a video for high-quality versus low-bandwidth, and progressive download versus streaming, and also troubleshoot problems if the video won't play on all devices.
其结果是，您可以创建高质量的视频，而只占用较少带宽，以及渐进式下载，而非流式下载，如果视频不能在所有设备上播放还可以进行故障检测。
Progressive decoding to be able to decode an image as soon as download begins.
渐进解码，下载开始即可开始解码。
When using progressive video download, the media infrastructure determines how much vid-eo it needs to cache before it can start playing back the video.
当使用视频连续下载的时候，媒体环境决定在视频播放之前多少视频数据需要被缓冲。
When using progressive video download, the media infrastructure determines how much vid-eo it needs to cache before it can start playing back the video.
当使用视频连续下载的时候，媒体环境决定在视频播放之前多少视频数据需要被缓冲。
应用推荐