1. What is YouTube? YouTube is a video-sharing website, created by three former PayPal
employees in February 2005, on which users can upload, view and share videos. Most of the
content on YouTube has been uploaded by individuals, although media corporations including
CBS, the BBC, VEVO, Hulu, and other organizations offer some of their material via the site, as
part of the YouTube partnership program. Unregistered users can watch videos, while registered
users can upload an unlimited number of videos.
YouTube supports a wide variety of the range of video and audio formats in use. You can get a
quick overview of what may be an issue with your video's formatting by taking a look at the
warnings and error messages that we communicate to you while you're uploading your video.
Here is a list of some well-known formats that YouTube supports:
WebM files - Vp8 video codec and Vorbis Audio codecs
.MPEG4, 3GPP and MOV files - Typically supporting h264, mpeg4 video codecs, and AAC audio
codec
.AVI - Many cameras output this format - typically the video codec is MJPEG and audio is PCM
.MPEGPS - Typically supporting MPEG2 video codec and MP2 audio
.WMV
.FLV - Adobe-FLV1 video codec, MP3 audio
Why is YouTube so popular? The biggest reason why YouTube is so popular is that it is FREE, then
it is use to use. What's more, you can find videos on practically any topic you could possibly think
of, and the quality of youtube is good. So why is YouTube so popular? Well simply put, the
YouTube team are always ahead of the game with making things easier and higher quality with
the latest in cutting edge technologies. And for us on the back end, that just makes for a better
entertainment experience.
But how can I do if my videos that I want to upload are not supported by YouTube? Just like
AVCHD mts/m2ts video format.
In order to make the AVCHD file optimally uploaded on YouTube, you have to render to a third-
party program, such as Doremisoft AVCHD Converter for Mac, which can fast convert AVCHD
MTS/M2TS files to YouTube compatible file format like MPEG4, MOV, etc.
Here is the guide on converting AVCHD to YouTube on Mac:
Step 1: Load AVCHD file(s) to Mac AVCHD Converter
Run Doremisoft AVCHD Video Converter for Mac as the best Mac AVCHD to YouTube Converter
and click the "Add File" button to load AVCHD .mts or .m2ts videos.
Step 2: Choose an output format for uploading to youtube, if you choose .mp4 you can Click
"Profile" menu bar to select the output file format. Go to "Common Video"->select "MPEG-4 AVC
(*.mp4)".

2. Tip:MOV is a friendly format to mac and youtube, if you would like convert avchd m2ts/mts to
mov mac, you also can choose the .mov file format as the output format.
Step 3: Hit "Start" button to begin the AVCHD to YouTube MP4 conversion.
Tip: Canon HF G10, Canon Legria HF R: HF R26, R36, R106, R205, R306, Canon Legria M: Legria HF
M52, HF M56, HF M306, HF M406, HF M506, they record on AVCHD format, so, with doremisoft
AVCHD converter mac you also can convert canon legria to mac mov, mp4 for palyback and
editing.