Windows Media-broadband course: this option provides user a better video and audio quality, which requires user have a broader bandwidth and suits normal broadband connection.

• 宽带效果:此效果为视频教学,图像和声音质量较佳、图文并茂、视听同步,对网络带宽要求较高,适合普通一般宽带上网学员使用;