kacal,
DVDFab Express 2.9.7.9 and DVDFab Decrypter 2.9.7.9 handle FreedonLand without any problems for me, so I know the burn engine is fine, and the decryption of the programs are fine also. Burning coasters could be a number of things, like bad media, burn speed is too fast , etc. the Sony DVD-R's that you're using, are they Made in Japan or Taiwan ? I would suggest using the ones made in Japan. If you have to, use the DVD+R media.