Unable to burn additional files to CD

Question

I'm unable to burn additional files to a CD I previously burned to.
When I look at the CD via disk utility it states "Write Status :Read Only"
Is there a way that I can still write to this CD?
I assume I must have done something wrong earlier with the first burn to allow multisessions.
Any ideas?
thanks!

Answer 1

No, you can't write to it again. You can't write a session from the Finder. You need to use Disk Utility or an application like Toast. Here's how to do it with Disk Utility.
Recording on a CD-R disc more than once
Normally, you can only burn information to a CD-R disc one time. If you use a CD-RW disc, you can erase the disc and then record on it again.
There is a way to use a CD-R disc more than once. If you use Disk Utility to burn the disc, you can set up the disc to accept more disk images in the future. This way, you can burn a disk image now and add to the disc later until there is no more room on the disc. This is called "multisession" burning.
IMPORTANT: Some formats (such as ISO) only allow one disc burning session. Others, such as HFS+ (Mac-OS Extended) allow more than one session until the disc is filled.
1 Create a folder for the session and drag the items you want to burn into the folder.
2 Open Disk Utility, located in Applications/Utilities.
3 Select Images > New > "Image from Folder." Then select the folder you created in the navigation window and click Open.
4 Type a name for the image, choose a disk format, and click Save.
5 When the disk image is complete, select it in the left column of the Disk Utility window.
6 Choose Images > Burn or click Burn in the tool bar.
7 Insert a blank CD in the optical drive.
8 Select the "Leave disc appendable" checkbox. If you don't see this option, click the triangle in the top-right corner to see this option.
9 Click Burn.
John