macbook disk utility wont work

i have a black macbook. im going to upgrade to the new leopard os. but the problem is i cant back up my files wanted to use the disk utility by making a disk image of my hard drive. (by the way i didnt partition my hard drive. when i make the image it will say cant create disc image resource busy. i tried from rebooting my computer until now it wont work... i cant wait to install my leopard

 

Hello, ahbhu:

You're not going to be able to backup your hard drive with Disk Utility. Try a dedicated backup solution such as Retrospect, SuperDuper, etc.

Cheers

 

thanks david... which is the best application for backup?

 

Hello, ahbhu:

The best application for backup? Time Machine. However, since you want a pre-Leopard backup, many people swear by Retrospect and SuperDuper; both are more than capable of performing a simple one-time backup.