Generating proxies within the CatDV client is achieved by selecting the clips that require proxies and navigating to the Media/Build Proxy Movies menu.
CatDV will then start generating the proxy files in the preset format that is configured within the preferences file.
Configuring the proxy movie template
Click Preferences button and navigate the drop down menu to
Proxies & Thumbnails
Select your preferred proxy player format from the dropdown box between Quicktime and Xuggle. The next dropdown box contains shortcuts of preset formats which can be selected if they match your proxy requirements.
If not select custom, click the settings button to open the Quicktime Proxy Settings Menu.