Someone somewhere said that M2TS is the original broadcast stream extension name that was used, which was adopted by the Blu-Ray consortium. Now there were some cameras producing video that wanted to use the m2ts format but were limited to the old 8-3 file naming convention, so they used MTS instead. M2TS simply takes the standard MPEG-2 input stream and adds a 4-byte time stamp to the header of each 188-byte incoming packet (the time the packet arrived at the decoder). This increases the packet size to 192 bytes. Those 4-bytes are the difference between the MPEG-2 input stream format and the m2ts/mts output stream. They're not talking about the codecs of the elementary stream here nor the bit-rates used.
I have some JVC cameras that produce video files with a TOD extension that you may have heard about, and which Premiere does not import directly. However, here is what I know about those TOD files: I can either use a Cyberlink software to convert them to mpg which simply strips the 4-byte code from the file making mpg files (which incidentally makes the resulting mpg's slightly smaller), and which Premiere Pro likes. Or I can simply rename the file extension from TOD to M2TS and Premiere will read them perfectly, with the 4-bytes still embedded, meaning Premiere knows about those 4-bytes. Note that the video/audio portions of those files are not modified in any way, it is simply the presence or absence of the 4-byte code which makes the difference. Lee -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of BEDFORD NEIL Sent: Monday, August 29, 2011 3:43 AM To: [email protected] Subject: Re: [AP] AVCHD questions Mike, You answered your own question...almost. The AVCHD 'structure' (a pita, I agree with Rieni here), IS the very same BluRay structure. Look at any BluRay disk and its the same as the camcorders structure. Obviously, some camcorders put the dreaded '2' in the stream, which, for the life of me cannot remember if its needed or not on BluRay disks, guess I'll have to dig one out and look. So, output media to local disk as a BluRay 'disk' (for local playback) if it will let you and then copy it back to the camcorder. You have a 50/50 chance it might work. (Maybe add/remove the '2' in the stream folder files and try that.) It could be that the camcorder as Rieni says, doesn't like you doing that as it looks for its metadata strewn across all those folders, but its worth a go. Failing that, you can pick up a relatively cheap solid state media player that will play H.264 MOV files for about £30 now with HDMI output (up scaled), so you would have to experiment to see what works. Let us know how you get on, I run the very quiet AVCHD Yahoo! group, which does/did try and get around the pita that is, AVCHD :-) Cheers, Neil. On 29 August 2011 03:36, Rieni <[email protected]> wrote: > ** > > > All I can tell you is that when I copied some edited AVCHD footage > back to a memory card and put it into my GH2 camera, the camera didn't > recognize any files and suggested I should format the card. As far as > I know SD cards have to be written by a camera if you want to play > them back on TV (using the camera as a player or the built in SD card > reader that some TVs have). It may be better to buy a dedicated solid > state memory (SD cards, USB cards) or hard disk multimedia player and > connect that to your camera. Then you can still stay in the h264 .mts > format so you don't re-render your output files but you don't need the > typical AVCHD file structure anymore for playback. You can still try > to copy .mts files back to an SD card and try to play it back from > your camcorder, maybe you have more luck. I find this AVCHD file > structure a pita to be honest. > > > At 29-8-2011 03:38, Mike Boom wrote: > > > > > >As an AVCHD newbie, I'm looking for some tips for working with AVCHD > >in Premiere Pro: > > > >1. I'd like to export finished projects in .mts format, the same > >format I've imported the source clips in. The reason: I'd like to > >write them to my camcorder's memory so I can plug the camcorder via > >HDMI into a high-def monitor and show the finished video. It's easier > >and more sure than burning a Blu-Ray disk and hoping that the video > >setup I'm using for playback (often at someone's house) has a Blu-Ray > >player. My camcorder will only play back AVCHD files (.mts). > > > >Is there a way to export to .mts files in Premiere Pro CS5.5 using > >Media Encoder? I can't seem to find one. > > > >2. Is there any way to view the embedded metadata in the imported > >.mts files? Bridge will show the date the clip was shot (it displays > >it as "date modified," which is confusing), but Premiere Pro won't > >show that information. I ask because if the metadata would show up > >along with the file, it would make sorting through clips easier. > > > >Thanks for any tips from experienced AVCHD hands here, > > > >Mike Boom > > > [Non-text portions of this message have been removed] ------------------------------------ Yahoo! Groups Links ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Adobe-Premiere/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Adobe-Premiere/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
