From the Toast guide and online help built into the software. See bolded section. Seems clear to me.
Copying a CD or DVD
You can make a copy of non-protected data, audio and video CDs and DVDs.
To copy a CD or DVD:
1 Click the Copy tab at the top of the Toast window.
2 Click the Formats tab in the left drawer and choose CD/DVD Copy.
3 Choose any optional settings:
• CD-TEXT: If your original is an audio CD, you can automatically retrieve album information and add CD-TEXT to the copy. To view this information, you will need an audio CD player that supports CD-TEXT.
• Fit-to-DVD video compression: If your original is a DVD-Video that is too large to fit onto a standard 4.7 GB recordable DVD, selecting this option will compress it to fit on the copy. See Changing Copy Options.
4 Insert the original CD or DVD into your recorder.
• Read From: If you have multiple CD or DVD drives on your computer, you can copy from one drive to the other. Click the pop-up to choose which drive to Read From and insert the original disc into that drive.
5 Click the red Record button and choose a recorder from the list and optional recording settings, such as "Number of Copies." Click Record to continue.
6 When prompted, insert a blank recordable CD or DVD.
Toast displays a progress bar and status information as it copies your disc.
If you only have one drive on your computer, Toast will copy all the contents of the original to a temporary file on your hard disk and then write it to the blank disc. The temporary file is deleted automatically when the copy is complete. You may need up to 15 GB of temporary free hard disk space depending on the type of disc you are copying.