Flash card data recovery?

[Sean Hammond]

A friend has what looks like a 64mb flash memory card for a digital
camera. It has SmartMedia written on it. It's an old card (too big to
fit in my digital camera). She's deleted a bunch of important photos
that were on it.

So.... I'm looking for leads. Does anyone know:

* If recovering the photos is time dependent, does the deleted data
degrade over time?
* Is there some linux floss that we can use to attempt to recover the data?

Any leads appreciated!

-- 
https://wiki.ubuntu.com/SeanHammond