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Phase 1: Prepare Your Video > The Action-Safe Area - Pg. 355

Figure 15-1 shows how to use a safe color plug-in in iMovie. Safe Zones Most standard-defnition tube televisions overscan to compensate for the way picture tubes age over time. Overscanning TVs display only the central portion of the video picture, while clipping (hiding) the rest behind the bezel (screen frame). In particular, broadcasters refer to two danger margins of a video image: the title-safe area and the action-safe area (see Figures 15-2 and 15-3). Tip: Flat-panel TV sets like plasmas and LCDs don't have picture tubes, and therefore don't overscan. Phase 1: Prepare Your Video The Title-Safe Area When a TV chops off parts of your title, making it diffcult or impossible to read, your audience can't help but notice (see Figure 15-2). As noted on page 185, you can make sure that your iMovie titles will always be safe in the resulting DVD by turning off the QT Margins box as you add titles and credits. iMovie won't allow the title to expand into the outer 10 percent on either side. Figure 15-2: Poor planning may produce overly wide titles that extend beyond visible screen boundaries when played back on a TV. Use title-safe settings to avoid this overex- tended, snipped text. The Action-Safe Area Professional broadcasters also refer to the action-safe area of the screen. It's not quite as broad a margin as the title-safe area, because your audience can usually fgure out what's going on even if the action is slightly clipped at the outer edges of the screen. Still, it's vital that your action remains mostly within the central portion of the screen. chapter15:fromimovietoidvd 355