What is the difference between mts & m2ts ?

They are essentially the same files, Ted. In fact, they are EXACTLY the same files.

Some programs just save them with one extension, some with another. About the only challenge is that, if you use a program other than Premiere Elements to import the video from that camcorder, the clips (with a different extension) may not play in the Organizer.

MTS and M2TS files are all forms of MPEGs, Ted. AVCHD files just have some unique characteristics, and the suffix is just to designate that it is an AVCHD file.

original extention is m2ts, but on flash cards you can have only 3 characters so they shorten it to .mts, some programmers that did not know what they are doing shorten .m2ts to .m2t  silly isn't it.

m2ts is a multiplexing method that comes from blue ray discs, a container to the video and sound that describe the way they are mixed, into that you can find mpeg2 or H264 compression methods, H264 compression and m2ts container is AVCHD found in cameras.

Regards

Would it suffice to say that there are many flavors of MPEGs as well as many many many flavors of AVIs? MOVs also.

AVCHD files have some unique characteristics, including an advanced codec. HDV video is a high-definition MPEG that uses anamorphic pixels. They are all similar in form but very different in execution.

Thanks Steve!

I have my Sony HDR-XR500 Handycam and this is good info for me. I had no idea that the files were just variants of MPG.   Cool.

cheerio.

Petey

I said

H264 compression and m2ts container is AVCHD

MPEG is not AVCHD, MPEG codec can be used in mainy container, as H264

Do not confuse beetwen container and compression codecs

Please read http://en.wikipedia.org/wiki/Codec

regards

In practical terms, I ran an experiment: I burned seven segments of a quite large movie, 1 hour 18 minutes 1920 X 1080, Dolby 5.1 audio, in Pinnacle 17.6; each segment was produced as an M2TS file.

I then loaded the seven segments into Premiere Elements 11, and burned a Blu-ray - it came out at 12.2 Gb, an m2t file, and was of indifferent quality with 'tinny' sound.

I loaded the SAME seven segments into Pinnacle 17.6 and burned essentially the same Blu-ray (except for Adobe menus) - it came out at 23 Gb, m2ts and was a vastly superior visual and audio product.

On a  technical basis I wouldn't know, but in practical terms m2ts is far higher quality with a consequent increase in file size.

So for me, m2ts is far better

GMadge

I would question your results when you write

I then loaded the seven segments into Premiere Elements 11, and burned a Blu-ray - it came out at 12.2 Gb, an m2t file, and was of indifferent quality with 'tinny' sound.

There is no way you are going to get a .m2t file from the Premiere Elements (any version) burn to Blu-ray format on Blu-ray disc. The video file in the Stream Folder of the BDMV Folder in the Blu-ray disc format structure has a  .m2ts file extension. I have been working with Premiere Elements for many, many, many versions and have never found the burn to Blu-ray video file as one with a .m2t file extension.

Please give more details of your Premiere Elements 11 project that produced this Blu-ray disc format on Blu-ray disc with the video file as a .m2t file....including what computer operating system you were running your Premiere Elements 11 on.

You may want to go back and reconsider your results and observations.

Thank you.

ATR