How do I change the video size (resolution) of the converted video files?
In the Tasks List, select the file(s) that need to be changed. On the File Settings tab go to the Video Options Page and select the Enable check box in the resize section, and then select one of the standard sizes or select Custom and click Adjust to open the Resize Settings dialog box to set up a custom size.
When creating a profile, open the Video Options, then check the Resize check box and select the resize method. Some target formats allow changing the video size from the Target Format options like iPod, PSP, Smartphones, and ZEN to cope with the multimedia device they intend. Note that if you select for the Video codec you will not be able to resize the video.