I have an .avi file with 2 audio streams that I'm trying to re-encode with AutoGK (the aspect ratio is off). When I start the job though, AutoGK gives the "Unsupported audio type" message and stops. The 2 audio streams are list in the Audio track window as: 192 Kbps AC3 1ch 130 Kbps MPEG-1/2L3 -- this is the problem one it's stalling on Media info on the 2 audio streams: Audio #1 ID : 1 Format : AC-3 Format/Info : Audio Coding 3 Codec ID : 2000 Duration : 1h 26mn Bit rate mode : Constant Bit rate : 192 Kbps Channel(s) : 1 channel Channel positions : C Sampling rate : 48.0 KHz Video delay : 16ms Stream size : 119 MiB (8%) Alignment : Split accross interleaves Interleave, duration : 42 ms (1.00 video frame) Interleave, preload duration : 500 ms Audio #2 ID : 2 Format : MPEG Audio Format version : Version 1 Format profile : Layer 3 Codec ID : 55 Codec ID/Hint : MP3 Duration : 1h 26mn Bit rate mode : Variable Bit rate : 130 Kbps Nominal bit rate : 128 Kbps Channel(s) : 2 channels Sampling rate : 48.0 KHz Resolution : 16 bits Video delay : 3s 768ms Stream size : 80.6 MiB (5%) Alignment : Split accross interleaves Interleave, duration : 24 ms (0.58 video frame) Interleave, preload duration : 1416 ms Writing library : LAME3.90. Encoding settings : -m j -V 4 -q 2 -lowpass 17.6 --abr 128 I have both of those codecs installed and use them often, and even updated them today, but I'm still getting "Unsupported audio type". What am I missing or doing wrong? I don't see anything out of the ordinary in the 2nd audio stream. I can process the audio stream with either GoldWave and Audacity, so I definitely have the proper codecs installed.