装ffdshow，此前无问题。使用mpc6。4。7。6，win98
但是看manmi的rm时，出现如下字样：
Stream 0
Media Type 0:
--------------------------
AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: Unknown GUID Name {000000FF-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 23984
cbFormat: 20
WAVEFORMATEX:
wFormatTag: 0x00ff
nChannels: 2
nSamplesPerSec: 32000
nAvgBytesPerSec: 0
nBlockAlign: 256
wBitsPerSample: 16
cbSize: 2 (extra bytes)
Media Type 1:
--------------------------
AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: Unknown GUID Name {43414152-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 23984
cbFormat: 99
WAVEFORMATEX:
wFormatTag: 0x2006
nChannels: 2
nSamplesPerSec: 32000
nAvgBytesPerSec: 0
nBlockAlign: 256
wBitsPerSample: 16
没有声音，但是图象正常。请指教。
