到底那一套解碼器才是最完整的？

已經裝了最新版的K-lite mega code pack，可是依然有少數影片只能播放影像沒有聲音輸出！

以下是MPC播放前會出現的訊息資料，請問我還缺什麼解碼器？該怎麼補救？

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Media Type 0:
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Audio: 0x6771 48000Hz stereo 128Kbps

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: Unknown GUID Name {00006771-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 12000
cbFormat: 26

WAVEFORMATEX:
wFormatTag: 0x6771
nChannels: 2
nSamplesPerSec: 48000
nAvgBytesPerSec: 16000
nBlockAlign: 1
wBitsPerSample: 16
cbSize: 8 (extra bytes)

pbFormat:
0000: 71 67 02 00 80 bb 00 00 80 3e 00 00 01 00 10 00 qg..€..€>......
0010: 08 00|01 02 02 20 31 12 01 20 ..... 1..