Question : Problem: Hard drive back up

I created an image of my 300 GB hard drive.  Within that 300, I have used less then 70 GB.

Can I restore that image onto a 160 with no problems?

Answer : Problem: Hard drive back up

I believe almost all the clone software programs will let you do this.  Acronis or Ghost.

In either case, you're not gonna damage the data if you try.