Since I got no answers from vdr mailinglist I'm posting this to here also. I've problems with playback of recording where two aspect ratio changes occurs in a short time. This causes audio and video to lose their sync. Usually this happens when last ad in commercial break is in 16:9 format, "returning to program"-clip is 4:3 and the program is again in 16:9 format. After this sequence video playback starts to drop frames and audio gets played late compared to video. Rewinding or forwarding the playback a bit corrects the problem until the next commercial break ends. I uploaded a short example clip (12,1MB) to: http://kotisivu.suomi.net/izero/001.vdr Tested with vanilla vdr, versions 1.3.27, 1.3.33 and 1.3.36 and ttpci firmware versions 261a, 261d and 261f. Nothing is printed to syslog when this happens. Any ideas what might cause this? System: FC1 with 2.6.13 kernel and its dvb-drivers P2 350MHz Technotrend DVB-C 2.1 FF card 128MB RAM -- Tero Siironen