Editing AVCHD Lite files - Sound fine, video slowmo...

[Chrisedge]

I am trying to edit Panasonic ZS3 (TZ7) files in Vegas 9, and when I render them, more than half the time, the result is a video that plays fine for a few minutes, then the video will all of a sudden be playing back in slo-mo, with the audio being fine. It's not a playback issue, it's something that is happening in the rendering process. I have disabled "smart rendering" from the switches option, ("No rendering") but that doesn't help. I don't really want to convert M2TS to something else, then edit, then convert to something else. I understand Vegas is the best bet for AVCHD Lite files, but would buy anything if I knew it would work properly. I need to edit, subsitute audio (sometimes) and maybe add some basic titles to clips and export in a decent HD format, and MPEG for DVD use...

This doesn't happen on ALL my videos, but easily half the ones I try and edit end up having this issue. Usually kicks in about 5 minutes into a particular clip...

[edDV]

Are you sure your project format matches the file specs for resolution, frame rate and is set to progressive?

[poisondeathray]

Are you using 9.0c x64 ? That version is supposed to be very buggy, and numerous reports of issues on various forums.

You can try rolling back to 9.0b or 9.0a and see if it helps

[Chrisedge]

Not sure what my project format should be, since AVCHD Lite files are wonky because of the 60fps vs 30fps issue...

I believe I am on 9b...

[poisondeathray]

you should be using 1280x720 / 29.97
right click and disable resample for each clip

[Chrisedge]

Project settings were: 1280x720x32 29.970p

I am on version 9a

[poisondeathray]

When you say :

It's not a playback issue, it's something that is happening in the rendering process

Do you mean that within vegas everything is ok? in the preview? only when you export out it becomes "slow mo" ?

If so, what settings did you use to export? and how are you watching it / what software? and please fill in your system specs

[Chrisedge]

System is a P4 3.0ghz running XP, 2gb memory. Exporting to 720p (same res as project)...I have tried a few different export options (HD and DVD quality MPEG) and they all slow down. Using VLC to watch or Zoom player.

Edited to add: I also tried it on my dual core laptop, same story...

[Chrisedge]

I can import the same "problem videos" into Powerdirector and export no problem as well.