Known bugs:
- Fast track-skipping in mp3 plugin results in non-working replay (mp3, recordings)
- Switch between AC3/DTS downmix/passthrough gives VDR Filedescriptor error - will be fixed with code rewrite
- PCM Sound samplerates other than 48kHz are distorted on SPDIF out (not finally confirmed)
- last row in OSD is often corrupted
