If folder to 10, you will quickly hands to clean up. And to the rest of the place suggest, pour a correction file:
CDs are also not durable.
The link program which works on a very cool algorithm for reed-Solomon.
Allows to very efficiently recover data.
If very primitive, for example, if you recorded a 4 GB, and 400 MB of data for recovery you can recover ANY 10% of the data. In what place would the files are not messed up. In the beginning, at the end of 40 MB per 100 meters. It does not matter.