AVCHD Rendering

conk wrote on 3/12/2011, 4:04 AM

I submitted the below question via internet form to "Support" on March 1. Although receiving an automated question reference number, I have yet to get a reply to my problem in the 11 days that have passed.

PROBLEM: I am rendering AVCHD 1080i 25 fps footage from a Sony handycam. Project properties have been set to match the media. I am rendering to Sony AVC using template AVCHD 1920x1080-50i.

Rendering completes OK but when playing back on Windows Media Player the footage turns choppy around 2 minute mark and the audio does not match the video. The source AVCHD plays perfectly in WMP.

MY GEAR: Desktop with i7 950, nVidia GTX460, 6GB RAM, Win 7 prof x64.

Any thoughts on a solution are welcome.

Comments

TOG62 wrote on 3/12/2011, 4:32 AM

This is also my experience and that of several other contributors. If the intention is to use the rendered output as-is, not to burn to disc, people have found that running the m2ts file though tsMuxR solves the problem.

conk wrote on 3/12/2011, 2:51 PM

@tog62: thanks for your input....I will now google for more on that front. I have to admit that I am astonished such a basic flaw exists in this program...

Ken Brits wrote on 3/21/2011, 10:58 AM

Hi
My experience is the more or less the same, my spec's are
Intel I5-750 2.66GHZ Processor
ATI Radeon HD4350 1GB
Windows Version:7 64-bit
RAM:5 GB

However, once put onto a disc, it plays back perfectly on my Sony Bluray player and my son's Sony PS3. I think that it must require more Processor / Memory etc than what I have.
By the way, I have both Vegas Pro 9 and Movie Studio HD Platinum 10 and files created in both play back much the same. Due to the fact that there is no problem when I create a Blu-ray disc, I have stopped worrying about it

Regards

Ken

aquaholik wrote on 3/21/2011, 1:43 PM

My advice is to render to 1920x1080 .mp4 for playback on computer and on the variety of hard disk media player out there(WD TV, Seagate FAT, etc.)

For blue ray authoring, render the video with MainConcept MPEG-2(.m2v) type and Blu-ray 1920x1080-60i, 25 Mbps video stream. Render the audio as Sony Wave64(*.w64) and use DVD architect to create the blue ray disk.

When you feed DVD architect a rendered .m2ts file, it is buggy, regardless of whether you used tsMuxer to "fix" the file.

Thru trial and errors and help from this forum, blue ray authoring and HD playback on computer is pretty error free using the above format with VMS10.

conk wrote on 4/12/2011, 6:43 AM

Thank you to those who subsequently responded.

I ended up running the rendered file through TsMuxer to "fix" it. I tend to play back the rendered AVCHD files on PC or PS3. I tried .mp4 but find .m2ts plays "smoother" on my windows 7 PC.

If I ever need to burn to disk then I will render to .m2v and .w64 as suggested.

Cheers

trojanrobmc wrote on 4/14/2011, 9:34 AM

I have this exact problem.

When I try to render video as a SonyAVC format file under the AVCHD 1440 x 1080 60i template, I have mixed results. Upon playback in Windows Media Player, shorter files (anything under ten minutes) play fine. But longer files play choppy past the 12 or 13 minute mark. I have not tried to burn these files to a bluray to see if they play fine on Bluray playback.

What I've done (since I need to play these videos on my computer AND have them burnable to Bluray too), is render as many of files as possible under the SonyAVC format--because most of them are only a few minutes long, and they work just fine. Longer videos I render using MainConcept HDV 1080i .m2ts files. The drawback is they have to RE-render when I prepare my Bluray project, so it takes longer, but I guess it beats having a sharp stick in the eye.

That's interesting that some people have problems past the two minute mark, and I have it past the 12 minute mark. Could it be a memory issue??