Hi Nikolay, in order to translate some of the (more or less ;) recently added mferror strings, I'd like to ask you for a bit of context. #: mferror.mc:193 msgid "Unsupported rate.\n" Is this framerate, bitrate or rate of playback, i.e. 1.5x normal speed? #: mferror.mc:207 msgid "Reversing is not supported.\n" Going back to a previous point in the video/stream to resume normal playback from there, playing back in reverse or maybe even manipulating/editing the data, so the last frame will be the first and vice-versa? #: mferror.mc:221 msgid "Rate change was preempted.\n" Rate change was disabled? Rate was already changed by some other process/thread before (the change requested by user?) could be processed? #: mferror.mc:242 msgid "Clock is not available.\n" ? Time (speed/tick rate) provider? Like a metronome? #: mferror.mc:284 msgid "Unsupported state transition.\n" Playback state as in "paused", "playing", etc.? #: mferror.mc:319 msgid "Bad startup version.\n" I could just translate this literally, but that feels like saying nothing really. #: mferror.mc:326 msgid "Unsupported caption.\n" Caption as in subtitle? #: mferror.mc:347 msgid "Property type is not allowed.\n" I guess this is not a property as in a setting the user can change? More like an attribute? There may be more later, but that's all for now. Sorry for bothering you ;) Best, Julian