Hi,
there is a new version of the powermate plugin available: http://home.arcor.de/andreas.regel/files/powermate/vdr-powermate-0.0.5.tgz
Changes since 0.0.4: - dropped support for VDR versions older than 1.5.8 - added localization support using gettext as introduced in VDR 1.5.7 - added german translations
Regards, Andreas