Hi Ravenew, it depends on what version you are trying to use - some AVI files rely on M$ DirectShow filters for playback and opening with encoders, and older versions of Cinemacraft were unable to utilise DirectShow filters to interpret files. As jdobbs pointed out, the first thing to do is make sure you have the relevant codec installed, but I would add, in light of the above, that you should use CCE 2.64 or above and see if this helps matters. CCE 2.50 still has many fans, but these users invariably use AVIsynth to frameserve to it, in which instance, DirectShow filters don't really have any relevance, in the specific sense which I described. N.B. Although you did post this in the DVD encoding forum, I feel this is more CCE-specific than DVD encoding, so I have taken the liberty of moving it to the CCE forum. Please repost and let us know how you get on. Regards, Arky ;o)