[Maciej Piotrowski]

The ones that started to play rendered video jumpy and with some artifacts were Windows Media Player and VLC.
Sony Picture Motion Browser player played everything perfectly. Too bad that that they dont have separate player. In order to use it you have to have entire PMB program running. I’m guessing PMB is more designed to play 60fps better then other two.

Another interesting observation I made, is that when I rendered same file with Vegas Pro 13 and 15, the ones rendered with Vegas 15 were a bit larger in size comparing to 13.
I was hoping to be able to take advantage of new HEVC format with Vegas 15, and have smaller, and faster processed files, but those mp4 files can not have 5.1 sound. Sony AVC mp4, and m2ts files can so I will use those two formats.

[Maciej Piotrowski]

Thank you for that information.
I’m new to working with 60fps and have just realized that.
I was surprised that 30fps and 60fps clips have almost the same size, but 60fps have more visible clarity.
I have encountered a problem when trying to render my AVCHD (m2ts) files at 60fps and 25-26Mbps. After 30 sec, my media player started to freeze and show pixelations.
What is weird, is that when I used Picture Motion Browser by Sony, then all the files played without a problem. It’s a good program but editing in it is not as smooth as in Vegas.
To have smooth playing m2ts files I changed bps to 16Mbps and everything plays smooth now.
My main purpose is to have my vacation video to play with 5.1channel, just as recorder, in as close to original quality.
I have also observed that changing 5.1 ch to stereo did not lower the files size either.
So there is no reason to change it to stereo from 5.1ch.

The last observation is that rendering files in m2ts or mp4 with 5.1channel gives me almost the same size files. Mp4 renders a bit faster but m2ts gives better audio in AC-3 dolby which sounds better.

I guess I will stick with m2ts as final file.

Thank you everyone for help.

Maciej

[Maciej Piotrowski]

Thank you very much for that.
Short and to the point.
I will test that tonight and hope everything renders perfectly.

Thanks again.