ftypM4A M4A mp42isomü»moovlmvhdá]¢Ã¡]߬D (@ò­trak\tkhdá]¢Ã¡]ß (@òImdia mdhdá]¢Ã¡]߬D (UÄ"hdlrsounñÿminfsmhd$dinfdref url ñÃstblgstsdWmp4a¬D3esds€€€"€€€@4RÆx€€€€€€stts¨ (stsc2