Live File System
A file storage system that can be used to create CDs and DVDs. Discs formatted with Live File System allow you to copy files to the disc at any time, instead of copying (burning) them all at once.
Format a CD/DVD as Live File System
Before you can copy files to a CD or DVD, the disc must first be prepared using a process called formatting. There are several ways to format a CD or DVD disc. Your choice of format determines which computers and other devices will be able to read the disc.
1. Insert a disc into your computer's CD or DVD drive.
2. In the dialog box that appears, click Burn files to disc.

3. In the Burn a disc dialog box, type a name for your new disc.

4. Click Show formatting options, and then click one of the following formatting options:
(1) Live File System
(2) Mastered
5. Click Next to prepare the disc.

Now you can copy files to your disc using whichever method you selected.
Benefits of Live File System
1. Enable you to copy files immediately to disc by dragging them.
2. Are convenient if you want to keep a disc in the burn drive and occasionally copy a few files at a time.
3. Are convenient because there is no lengthy recording step, such as with Mastered discs. Each file is written to the disc as you drag it to the disc folder.
4. Let you delete individual files or reformat the disc to create additional disc space when you use a rewriteable disc such as a CD-RW, DVD-RW, or DVD-RAM.
5. Might have to be closed before they can be used in other computers.
6. Are only compatible with Windows XP and later versions of Windows.