Because of the new way in which QuickTime 3 checks for media files, this dialog will appear the first time you select a PPD with the Desktop Printer Utility. Proceed by selecting "Desktop Printer Utility" in the dialog box. After making this selection once, Mac OS Easy Open remembers your preference and won't present the dialog in the future.
If you receive an error stating "The document cannot be translated because an unexpected problem has occurred (-2048)" then you probably selected "Desktop Printer Utility with QuickTime translation" instead of "Desktop Printer Utility". To correct this, open the Mac OS Easy Open control panel and click the Delete Preferences button. Then select the PPD and this time choose "Desktop Printer Utility" from the dialog box.