Creating A Disc Image File - Ulead BURN.NOW 1.5 User Manual

42 ULEAD BURN.NOW USER GUIDE
6. Set the Write speed. If there is a disc inserted in the burner
drive, the program will check the write speed of the burner and
the disc, and by default, will choose the highest speed that both
can handle.
7. Specify the number of disc Copies to burn.
8. Select On-the-fly to directly copy from the source disc.
9. Select Buffer underrun protection to prevent interruptions in
the flow of data from the source disc to the burner and ensure a
safe burn.
10.Click OK to start copying.
Note: If you encounter a buffer underrun error even with the Buffer
underrun protection option selected, choose a lower write speed
or clear On-the-fly and try copying the disc again. Disabling on-the-
fly copying allows a temporary disc image file of the source disc
contents to be saved first in the hard drive before burning the disc.
This reduces the risk of copying failure.

Creating a disc image file

A disc image file is a single file that has captured the entire
contents and file structure of a disc. Creating a disc image file on
your hard disk allows you to archive the source disc contents for
backup or future burning.
To create a disc image file:
1. Insert the source disc into your CD-ROM or DVD-ROM drive.
2. In the Select a Task dialog box, select Copy Disc.
3. Under Source, select Disc then choose your source drive.
4. Under Destination, select Disc image file.
5. Click OK. The Save As dialog box will be displayed.
6. Select a file format. The disc image file can be saved in .iso
which is a standard disc image format or .ixb which is Ulead's
native format.