When I tried to play *.ts files in Movie Player in Ubuntu 12.10 (64-bit),
I got the following message
"python (v2.7) requires to install plugins to play media files of the following type: application/x-mpegts-private-section decoder."
and then my computer would crash......
The files wouldn't play at all in VLC!!!
After a bit of search on the internet, I found a solution of sorts.
Install Medibuntu as follows
<<then install ffmpeg - there seems to be different ways to install ffmpeg>>
sudo -E wget --output-document=/etc/apt/sources.list.d/medibuntu.list http://www.medibuntu.org/sources.list.d/$(lsb_release -cs).list && sudo apt-get --quiet update && sudo apt-get --yes --quiet --allow-unauthenticated install medibuntu-keyring && sudo apt-get --quiet update
sudo apt-get install non-free-codecs
Open ffmpeg, and convert the *.ts file to a DVD PAL fullscreen or avi
It can take a while, but once it is done, you can play the file in Movie player or VLC.
I'm sure there is another way, but this worked for me