So, my girlfriend was playing Pleasantview earlier in the day, saved with no issues (I hear that's important), and upon coming back to it in the evening, found that Pleasantview had disappeared.

Modification-wise:

• No custom content, at all
• Brought Brandi Broke back to life (deleted "Sim is dead" memory, unticked ghost traits), and placed her (using SimPE) into a new family instance, since her (social worker'd) kids occupied the old family instance.
  

Last backup is just under a week old, but in the interm, over 700 kb (1000+ records) of new material was added to the neighbourhood_0001.package, so you can understand that a lot has happened ;)

So I tried opening the corrupted neighbourhood in one SimPE instance and the last backup in another SimPE instance, hoping to do some manual surgery, but the data is entirely corrupted, as far as I can tell - every value is of type "UNK" (that is, unknown), and although the data is still there, as evidenced by the package file size, all of the attributes are messed up.

I was wondering if anybody had experienced this before, and successfully recovered from it.

Thanks!

Image of corrupted neighbourhood file:

http://www.kareeser.com/oldwww/media/temp.JPG