Synchronous programming language. A synchronous programming language is a computer programming language optimized for programming reactive systems. Computer systems can be sorted in three main classes: transformational systems that take some inputs, process them, deliver their outputs, and terminate their execution; a typical example is a compiler; interactive systems that interact continuously with their environment, at their own speed; a typical example is the web; and reactive systems that interact continuously with their env
Open Disk Utility (Applications > Utilities). Select the DVD disc from the list on the left. You will notice that there are two DVD icons--select the one slightly indented (this is the DVD itself, whereas the first one is the drive). Click on New Image in the Disk Utility main window. Choose a name and a destination from the Save As... window. Keep in mind that your destination should have enough space to copy the entire DVD, which can be over four gigs.
How to Copy a CD or DVD Using Disk Utility. These are instructions on how to make a duplicate copy of CD or DVD using Mac OS X Leopard Disk Utility. Launch Disk Utility from Applications:Utilities and select your CD from the list on the left. Click the New Image button to create a dmg of your CD or DVD. Enter a name and location to save your image as then click the Create button. Disk Utility will now create your new disk image.