Minor bug in "dvbdevice.c" - cDvbDevice::GrabImage if (Quality < 0) Quality = 255; //XXX is this 'best'???" should be if (Quality < 0) Quality = 100; because Quality is between 1..100. https://tahoe.ca.sandia.gov/public/VTK-doc/jcparam_8c-source.php#l00106 regards patrick