[P1] Trying to burn

[Gary D. Adams]

We did some research and found out that you can indeed create 
multi-session CD in OS X. The only catch is you’ll have to create the 
first session in Disk Copy, and not in Finder as claimed. In a nutshell, 
Disk Copy does not “close” a CD after a burn. It leaves the CD open for 
subsequent burn, and hence you can append new sessions to the CD until 
the CD’s capacity is full. Finder, on the other hand, will close the CD 
after it burns the content. Once it’s closed, you simply cannot append 
any more regardless of whether there’s empty space left behind.

Let’s go through the steps to create a two sessions CD. First, you’ll 
have to create a .dmg file and mount the resulting image on your 
desktop. To do so, launch Disk Copy and select the “New Blank Image” 
option from the “Image” menu. Set the size of the image file to your 
requirement, give it a Volume Name and save it. We saved it as “CD No. 
1” in our illustration. The image will then mount on your desktop. Now 
you can drop files into the mounted image file. When you’re done, eject 
the image. Now you’re ready to burn the .dmg file. Go back to Disk Copy 
and select “Burn Image” from the “Image” menu. Use the navigator to 
select the “CD No. 1.dmg” file and click “Burn”. You should have your 
first session CD shortly.