I have been having a lot of problems recently with error 12 and 13, but what is even more infuriating are the crashes during a save!   

I downloaded and installed CFF Explorer last night - I have Windows 7, 64 bit with 8 gb of RAM.  This morning I played for a while, and of course I'm still in the habit of saving every 10-15 minutes, usually with the 2nd or 3rd save CTD on me - but surprisingly, I was able to play for about 2 hours, doing multiple saves without any problems at all!      Btw, when I say I played for 2 hours - I chose to quit, it wasn't forced upon me.  Been a long while since that's happened.

Thanks for posting this potential fix - I hope I don't jinx myself by saying this but it seems to have made a positive difference.  I can play again!

What would you expect him to put by the beach?  They are cliche because they belong there.

Try deleting your CASThumbnails.package at My Documents\Electronic Arts\The Sims 3\Thumbnails

The game will regenerate them - hopefully, correctly.

If you click on the Tag heading, it will sort them all by file types.  Once all the XML files are together, they are a cinch to delete.  Use Shift key to select more than one at a time.

Just wanted to let you know that I downloaded this world a few weeks back and am enjoying it immensely.  Great job and thank you! 

Thanks for your response.

I am using "Import ... (EXPERIMENTAL) as .dbc" - it seems to be doing it to some degree with each folder.  I do notice I have one folder where it did exactly the opposite.  It took 72mb and turned it into 18mb.  I haven't loaded my game up yet.  I actually had no problems with slowdown whatsoever (after using Process Monitor in the past to remove problem files) but was playing around with this more out of curiosity so either way it should be fine.   Probably the compression levels being adjusted as suggested.

Thank you for posting this information!

 I am using it to organize my files (much like the poster above by creator) but one thing I noticed is that in some cases, the files output are larger than the files input.  For example, I had a folder of Fresh Prince cars at 38mb, the output file of the .dbc file created is 48mb.  Another folder I had was 284mb, the output file is 387mb.  Any idea why this may be happening?