@Oliver: if its about HDD-erros:

Systems like Git and SVN where you save your work regulary on an external server in a source managementsystem.(commits are VERY usefull wink )
In-Editor-Backups are usually designed to fetch the risk of loosing data when the editr crashes.

And if you have constant HDD errors, you should check you'r hardware laugh

MY Website with news of my projects:
(for example my current
Muliplayer Bomberman,
GenesisPrecompiler for LiteC
and TileMaster, an easy to use Tile editor)
Sparetime-Development