Stuttering is a sign of too high bitrate. It should work up to 18 Mbps but I always keep mine to about 15 Mbps and the video looks plenty good. Also, I never burn at the full speed rating of my disks. My current batch is rated at 16X but I select 12X.

I am using 16k Mbps as the output bitrate, which is the same as my Sony camcorder that the clips came from. At this point I have not burned a disc, just played the .m2ts file on my PC, and also using a WDTV connected to an HDTV. Normally my PC seems to have enough horsepower to play such files without problem (Core i7 920)

It starts stuttering several minutes into the video. Up until that point it looks fine. It is a more subtle stutter than I remember from version 9. The A/V sync gets progressively worse and is about 2-3 seconds off by the end of the 13 minute video.

Running the file through tsmuxer fixes the stutter and the sync problem. The tsmuxer file is slightly smaller than the VMS file, so it is changing something that somehow fixes the problem.

If others aren't having the problem with AVCHD to Sony AVC, it must be my system. Running the file through tsmuxer is fast (less than a minute for the 13 minute video), so it is an acceptable work-around.

Hi there,

I am having the exact same issue as dalemcci.

Is your system W7 64 bits ?

I am having problem reading the file (prior to tsmuxer) only on my W7 64bits PC. On a Vista PC, it runs smoothly.

I have sent a ticket to Sony already; please do too; they must fix this bug.

It is a pity, because otherwise, the SW is great.

Pierre

When you run it through tsMuxer - which settings do you use?

I use default settings, choosing output as "M2TS muxing". I do not change any other setting. They are:

Input tab:
change fps: unticked
change levels: unticked
Add picture timing info: ticked
Continually insert SPS/PPS: ticked
Remove pulldown: unticked
Output: tick M2TS muxing

General tab:
klick "Mux VBR"
On the right (General), first 3 options are ticked

Hope this helps.

Pierre

pierreontheair asked:

"Is your system W7 64 bits ?"

Yes it is. I'm glad you opened the ticket with Sony. I'll do the same now that I know it may be related to W7 64 bit. My tSmuxeR settings are the same as yours by the way.

http://www.sonycreativesoftware.com/forums/ShowMessage.asp?MessageID=723739&Replies=1

Aquaholic,

I reached the conclusion that the problem is with VMS by the following logic. Maybe it is faulty logic, but here it is:

I have played back the VMS rendered .m2ts files with Windows Media Player, PowerDVD 8 Ultra, and Mirillis Splash Lite. (I haven't tried VLC.) The stutter and A/V sync problems show up with all three software players. I have also played the files with a Western Digital WDTV hardware media player and see the same problems.

After running the file through tSmuxeR, all three software players and the WDTV play the file perfectly. That leads me to think there is a problem with the .m2ts file rendered by VMS.

The fact that the output .m2ts file from tSmuxeR is a slightly different length than the original file, leads me to think that tSmuxeR is fixing something. I think you said the .m2ts file output to Blu-ray by DVDA is also a different length than the original file rendered by VMS. Maybe DVDA is correcting the problem just like tSmuxeR does. Or is it a longer file because of the 18 Mbps video and LCPM audio compared to 16Mbps video and AC3 in the original?

It seems to be a compatibility issue between VMS and Windows 7 (64). Which one is at fault, I am not sure. That being said, files "fixed" with tsMuxer not only play fine on Windows 7, but also on my Vista PC. So I would be inclined to say that VMS is at fault.

Add the PS3 to player that will not play the rendered .m2ts without syncing problem.

Yes tsmuxer is a quick fix to the playback problem, but I rarely rendered to 1080i using the .m2ts format anymore. The limit is 16mbps and DVDAS5.0 has a problem with the .m2ts format. If your ultimate goal is blue ray disc then use the Mainconcept MPEG-2(.m2v) and render the audio separately. The bit rate limit for that one is 25mbps, and the rendering time is much faster than Sony AVC.

But I can see the need for .m2ts. If I am just making 4-5 minutes slideshow or short 20-30 minute video that I want to copy to the PS3 hard drive, then I render to .m2ts and use tsmuxer. Same thing with AVCHD disk. Rendering at 16mbps will allow a little bit more time on a BD-5 disk.