error compiling burn-plugin

[h.h.braun at arcor.de (h.h.braun@xxxxxxxx)]

When I cimpile the burn-plugin I get the following error:
Plugin burn:
make[1]: Entering directory `/home/braun/vdr/vdr-1.4.4/PLUGINS/src/burn-0.0.5'g++ -g -Wall -Woverloaded-virtual -c -DPLUGIN_NAME_I18N='"burn"' -D_GNU_SOURCE -DDVDDEV='"/dev/dvd"' -DISODIR=NULL -I../../../include -I../../../../DVB/include-o burn.o burn.c
burn.c:32: error: conflicting return type specified for 'virtual bool cPluginBurn::Active()'
../../../include/vdr/plugin.h:43: error:   overriding 'virtual cString cPlugin::Active()'
burn.c: In member function 'virtual const char* cPluginBurn::CommandLineHelp()':burn.c:58: warning: converting to non-pointer type 'bool' from NULL
make[1]: *** [burn.o] Fehler 1


Cheers 
H.Braun