Ripping to WMV for a PVR - audio problems

[fatgit]

I just got a Mustek PVR-H140 media player. This plays asf video, but only a certain type.

It has conversion software supplied, buy my god it's slow - 18 hours for a 70minute conversion from mpeg2.

I can get Windows Media Encoder to encode the same file in 45minutes, and the video is fine, but there's no sound.

Checking the info on a file converted using the supplied software, it reports :

Video Codec: Windows Media Video
Framerate: 30.30 frame/s
Bitrate: 759615 bps
Width x Height: 320x240

Audio Codec: Windows Media Audio
Bitrate: 96656 bps
Frequency: 24000 Hz
Channels: mono

Now, WME doesn't have that bitrate at that frequency, and neither do any of the tools I've tried.

Can anyone recommend a method of doing this - I dont mind demultiplex & multiplexing in a new stream if thats possible, but I haven't found a way to get the correct WMA format, or multiplexing wmv for that matter :)

Any help is greatly appreciated :)

I can record directly onto the device via video in, but it's not the most convenient way :/

[fatgit]

Looking at how the included converter works, it strips the audio and converts to
96kbps
24khz
mono
4bit
IMA ADPCM

Then combines the streams.

The audio conversion and the multiplexing seem fast, it's the video conversion thats taking so long.

Basically, what I need is a tool that will allow me to take the video stream (which WME will create) and multiplex the above format sound into it - but I've not found any tool that can do that, tehy all want to convert the audio to WM9 audio formats :/