dvdisaster UI: Preferences (button) The following tabs are found in the configuration dialog. Open the dialog by selecting the symbol marked green in the screen shot (click the image to expand it). The symbol may look different due to the symbol theme you are using.
"Error correction" tab. Choose "Augmented Image (RS02)" as storage method (green menu). Select "Use smallest possible size from following table" if you are working with standard media sizes. dvdisaster will then choose the smallest possible medium type which can be used for storing the image. The remaining free space on the medium will be used for error correction data and the image will be prepared accordingly.
Not used tabs

The "Misc" tab currently has only functions for creating log files. This is helpful for sending in bug reports but should be left off during normal operation. The "Appearance" tab allows you to adapt the output colors to your taste, but these have no further effects on the error correction data creation.
Augmenting the image with error correction data...