mp4_aac+_vbr_128_96_v34_10_a16_44_m.3gp
mp4_aac+_vbr_128_96_v46_10_a24_32_s.3gp
mp4_aac+_vbr_128_96_v106_15_a24_48_m.3gp
mp4_aac+_vbr_128_96_v138_20_a32_44_s.3gp
mp4_aac+_vbr_128_96_v152_25_a48_48_s.3gp