error in playing avi

The error below shown when I try to open an avi file. Couldn't locate decompressor for format 'XVID' (unknown) VirtualDub requires a Video for windows (VFW) compatiable codec to decompress video. DirectShow codecs, such as those used by Windows Media Player, are not suitable. What does the error mean?

It mean that you need to install XviD (codec to decompress that video). See XviD FAQ Q5 (get Koepi's binaries).

I got and installed the codec. However, it showed "No audio decompressor could be found to decompress the source audio format. (source format tag: 2000) when I try to play the avi. What audio decompressor do I need?

I think it is AC3, so search for AC3filter and install it. Btw, i you can try GSpot to find what kind of video and audio your clip has.

For audio, GSpot shows Codec name: ac3 (0x2000) and its stat is 3 compatible codecs installed. But I can't play it with the previous error.

You need to install fccHandler's AC3 ACM codec since VDub decodes audio via ACM and not dshow.

It works Many thanks Hub