請問一下各位,就是我用VirtualDub1.5.1開啟一個avi檔時
它出現了一個禁止的對話框,內容如下:

Couldn't locate decompressor for format 'DX50'(unknown)

VirtualDub requires a Video for Windows(VFW) compatible codec
to devompress video. DirectShow codecs,such as those used
by Windows Media Player,are not suitable.

想請問一下,這是什麼問題呢? 是不是我少裝了什麼codec呢?
麻煩各位幫小弟解惑一下...謝謝!!!