public override void ReadData()
{
CreationTime = Br.ReadUInt32();
ModificationTime = Br.ReadUInt32();
TrackId = Br.ReadUInt32();
_reserved1 = Br.ReadBytes(4);
Duration = Br.ReadUInt32();
_reserved2 = Br.ReadBytes(8);
Layer = Br.ReadUInt16();
AlternateGroup = Br.ReadUInt16();
Volume = Br.ReadInt16();
_reserved3 = Br.ReadBytes(2);
Matrix= Matrix.FromByteBuffer(Br.BaseStream);
Width = Br.ReadUInt32();
Height = Br.ReadUInt32();
}
}