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1. The first step is to use File > Open to open the initial WAV file (above).
2. Now select Project > Import Audio to import a second WAV file (above).
3. Now click the Time Shift Tool (horizontal double-headed arrow button).
4. Place the cursor as shown above, then drag the second WAV file to the right to the desired position.
5. With the second WAV in the approximate desired location, use the Zoom Tool (to the left of the Time Shift Tool) to zoom in on the overlap of the two WAV files.
6. Now use the Selection Tool (upper-left corner) to wipe an area comprising the two overlapped WAV files (shown between the two vertical red lines, above). Click the play (►) button to listen to the segue. Use the Time Shift Tool to fine-tune the exact starting location of the second WAV file in relation to the end of the first WAV file.
7. When ready, simultaneously press Ctrl + A (or use the Edit menu as shown above) to select all WAV files.
8. Select File > Export As WAV to save the combined WAV files as a single WAV. Starting from the top, repeat this process as many times as you like. Bear in mind that it may take 16 or more WAV combinations to fill a single CD.
While it's possible to keep adding WAV upon WAV after step 6 above, using a methodical stepped approach (exporting each combination as you go) lets you back up to any given WAV combination as you see fit. For example, you may have files labeled WAV1 through WAV16 for a given CD mix you're preparing. If you don't like what you've produced at the WAV16 point, or the entire WAV16 combination is too long to fit on a single CD, it's easy to revert to WAV 15.