Here is a tip. If you need a selection of shapes for custom buttons and/or highlights in Sony DVD Architecture 4.5, use the cookie cutter in Photoshop Elements.
Create a new project, 250x250 pixels with a white background. Choose a cookie cutter shape, and with the mouse you can size it over the white project. The result wil be the shape whish will be white against a transparent background.
Save as a PDF.You can then use this shape as a custom button or highlight mask.
By the way, the size 250x 250 was rcommende in Steve's book. As a test I used masks I already created a while ago. These were 640x480 and they worked fine.