Can you recover an overwritten TIFF file?

[Nostromo]

I accidentally overwrote a TIFF file, downsizing the original to 900x600.

Through back-up all copies on the two back-up drives are equally overwritten.

I have not set up time machine, so going back the timeline is not an option.

Is it possible to restore the overwritten file without the help of a professional recovery service?

Thanks for you input.

 

[Mal]

General rule is that overwritten files can't be recovered, but that depends if it simply replaced the entry in the directory or actually overwrote the data on the drive. I'd grab something like Data Rescue 3 and see if it can recover it for you. The less you use the drive it's on before running that, the better.

jW

 

[Nostromo]

Yes, I'm going to get the trial version of Data Rescue 3.

Never worked with such an application.

Is it of any use that I still have a small JPEG of that image? Would that help this application by providing it with an algorithm?