Cyberlink issued its last PD12 patch v3403 on December 3, 2014. Among other things, the purpose was to cure a problem where audio and video of clips became unlinked. The right-click to "link audio and video" appears greyed-out, yet clearly they have been unlinked. Most of the buttons on the tools row above the timeline disappear if a broken clip is highlighted. The video and audio portions of the clip become several sub-frames out of synch.



A 2013 Youtube video that illustrates one replicable sample of the problem, but the "solution" it proposed was to widen the timeline view to the maximum, re-sync the audio and video clips manually, and then to finish and export a project without ever closing it. This takes vast time if dozens or hundreds of clips must be repaired, and is not adequate if the corruption reappears every time a project is reopened. In my case, unfortunately, the solution suggested by the video did not work at all, since the "link audio and video" tool could be used only to unlink the clips, which made

Anyway, the v3404 patch did not undo the PD12 problem found in two projects initiated at the time. I could not simply right click to unlink, then relink the audio and video. Nor could the "group objects" command keep the audio and video linked. The darned problem is that, once present, it becomes impossible to add or modify content without causing the audio and video to become grossly out of sync, and many tools become inoperative.

I erronenously concluded that perhaps the v3404 patch would protect only new projects.

Recently, I began a another ambitious project, with all kinds of tracks and effects. Today I open the project and find that the video and audio appear delinked at various intervals in the timeline, but I can't spot any obvious causes. For instance, in one case the unlink appears after I inserted a sequenct of still JPG shoots between some MTS AVCHD clips. The JPGS have some "enhancements" applied, with key-framing, but there are no transitions. However, there is a place later in the timeline where I also did this, but the AVCHD clips that follow are properly linked. Occasionally, I locked the video line, and removed the native audio, replacing it with the audio portion of a clip whose video I did not use, but would that affect the audi-video unlink of other clips?

Do any PD13 users observe recurrence of the problem? My fear is that, if the PC12 3404 patch did not erradicate the problem, it probably persists in PD13. Yea or nay?

Any workarounds? To replace all the clips seems rather futile, if the video and audio simply unlink all over again after a project is reopened. To finish a project, without ever closing it, is also unrealistic.

I welcome any linke to a knowledge-base or user guide entry that offers solutions. My searched have been unsuccessful, particulary if I use words like "split," which harvests a vast number of separate topics.

If PD13 has conquered the problem where PD13 projects are involved, does this mean one can use it to open PD12 projects without seeing the video and audio portions of clips unlinked?

Thanks for any help or guidance. PowerDirector 12 (pondering 16)
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