Re-editing problem

[erdna]

I want to re-edit -remove some parts, adding a title- a fullhd VSX3 rendered file which looks and plays perfect. I never have problems with VSX2/3 even when re-editing. This time, it first takes seconds before it opens in the preview window when I click the library tumbnail. It freezes (with created or without smart proxi) for several seconds when I try to cut, or whatever on the timeline. It only gets somewhat better when de-selecting "audio while scrubbing", but remains still much more "freezy" than all my other (rendered) files. It's a ~2.5 Gb AVCHD file rendered at 18Mb/s VBR in VS. The only thing what is different is that it contains (pre-converted to AVXHD) SD parts from a JVC camcorder (.mod), but it all plays back flawlesly in several HW and SW players. Thanks for any advise.

[DVDDoug]

...but it all plays back flawlesly in several HW and SW players.

It's not that unusual for a file to play OK, but cause trouble when you try to edit or convert it. I assume there is a glitch in the file and players & player-software are more tolerant. If you used Smart Render, the rendering might not be "smooth", but I don't know... I know it's annoying when Video Studio can't edit a file it made!

You might try opening the file and saving in a less-compressed format such as MPEG-2. (You'll want to use the same resolution, framerate etc., but a higher bitrate to maintain good quality with less-efficient MPEG-2 compression.)

If Video Studio chokes on the conversion, you may need to use a 3rd-party conversion program. (I generally use SUPER* (FREE!!!) to convert or re-encode "problem files", but I have not tried it with AVCHD.)

After editing, you can convert back to AVCHD if that's the format you want.

Ideally, you'd like to avoid all of these extra format conversions, since you can potentially loose quality. But, if you don't have a choice....


* If you download SUPER, don't get fooled by the ads for other software on their website. Follow the confusing links and download SUPERsetup.exe.

[Ken Berry]

With great respect to Doug, there is simply no point in converting your AVCHD to mpeg-2 if it is standard definition mpeg-2, then later reconverting it back up to AVCHD... That way you would lose all your high definition. Downconverting it to SD is, of course, fine if your intention is to burn a standard def DVD, but I assume from your many previous posts, that this is not your intention.

However, the idea of converting it or reconverting it could be sound. As an experiment, you could reconvert the video to a new AVCHD using the same properties and you could try doing it with SmartRender if you are worried about time. My own preference would be to avoid SmartRender. But such a reconversion might rid the video of whatever problem it might have.

Or you could convert it to HDV/Blu-Ray format which is of course high def mpeg-2 with properties which would retain your original quality.

[erdna]

Thanks Ken and DVDDoug for the reply. The only thing that works is re-render to HDV and create an AVCHD after editing. Re-render to AVCHD stops at 98%. Still a strange behaviour, which I cannot reproduce with other re-rendered files. Another specific thing with this file is that it contains picture in picture parts created by overlay.