kˈɜːɹəntli ðɪ ˈoʊnli nˈoʊn wˈeɪ tʊ ɪstˈæblɪʃ ðə fˈaɪl tˈaɪp əvə .kjˌuːtˌiːsˌiːˈeɪtʃ fˈaɪl ɪz tʊ ɛmplˈɔɪ ɐ pˈækɪt snˈɪfɚ ænd sˈɜːtʃ fɚðə stɹˈiːmz fˈaɪl tˈaɪp ˌæzɪtˌɪz ɹᵻsˈiːvd baɪ ðə nˈɛtwɜːk kˈɑːɹd.
Currently the only known way to establish the file type of a .qtch file is to employ a packet sniffer and search for the stream's file type as it is received by the network card.