MKV or AVI to DV-AVI

Can anyone recommend a one step converter for MKV or AVI to DV-AVI. I recently purchased a ADS Pyro and I want to edit some of the files I’ve downloaded.

AVIDeMux is a good converter. Just checked and it does indeed have DV as an output option.

all in one dvd converter is good to and xllisoft make a good converter as well