[Bug-ddrescue] oops, i recovered right over my good hard drive

[Michael Mullen]

In desparation, i used ddrescue (successfully!) to save a failed hard 
drive.  Unfortunately, i didn't read the instructions carefully enough.
The failing HD is 40 GB (/dev/sdc)
I decided to put the rescued data on 500 GB misc. drive (/dev/sdb)

stupidly, i typed:
ddrescue -n /dev/sdc1 /dev/sdb1
Instead of creating an image, like i intended, I just overwrote the 
entire partition on sdb1!  I got the rescued data off that i needed, now 
i need to
get /dev/sdb1 back because now all the system sees is a 40GB partition.  
Any ideas?
thanks