With each track, information like creation and modification data, duration, track number, spatial characteristics (transformation matrix, display window, clipping region), a list of related tracks, volume and start time, duration, playback rate and a data reference for each media segment is stored.
每个信轨中存有如创建和修改时间，长度，轨号，空间特征(变换矩阵，显示窗口，裁剪区域)，相关信轨，音量，启动时间及长度，播放速度和每个媒体片断的数据索引。