Help needed in Matroska Muxer muxing rmvb into mkv

[faam]

Hi I have tried to mux rmvb streams video rv30 with cook for audio into mkv file the muxing is successful and that by using dsmux.exe but the problem that audio is not recognized by any decoder... this is 1st problem.
Then I muxed rmvb streams video rv40 with aac for audio also muxing is ended successfully but the video is not synchronized with audio timestamps problem.

I need help really I want to make some rmvb files to be mkv files to take advantage of raising decoder priority to the highest really it worth it with haali splitter.

Thanks in advance

[Chikuzen]

the problem that audio is not recognized by any decoder... this is 1st problem.
libavcodec has supported COOK for several years.
and ffdshow tryouts has started to support it about three month ago.

[faam]

libavcodec has supported COOK for several years.
and ffdshow tryouts has started to support it about three month ago.

I want to use Haali splitter to watch mkvs
But I want the muxed rv and ra inside to play synch in MPC-HC

[Chikuzen]

then try this.
ffmpeg.exe -i input.rmvb -vcodec copy -acodec pcm_s16le output.mkv