You can change the video frame size of your video files in Digital Media Converter Pro. Simply add your files to the Conversion List, then click the "Settings" toolbar button. Choose which format you would like to convert into. For instance, you can select Custom MPEG 4 or Windows Media Video. Then click on the Properties button.

On the Properties tab for most video formats, you are given the choices "Keep Source File Dimensions" or "Change Dimensions". Select Change Dimensions, and you can choose 320x240 from the drop-down list.

For Windows Media Video, you can select the dimensions you need from the drop-down Change Dimension list.

Some file formats have a Dimension drop-down list to choose from.

Select 320x240, and click OK, then Start and your video files will be converted to the new format, and have the dimensions you require.