For smart copy to work the project must only consist of straight cuts with no fades or effects and the export settings must reflect the bit rates, resolution, GOP structure, and frame rate of the source files according to the manual. I have rarely seen this option come up due to the enforcement of those rules. Make sure when you create a new project that as many of those parameters are set in the movie settings as the program allows and on export check the default rending settings to see if they are a match.
To add to @CubeAce comment - even when as many of the settings, as described by Ray, are met and all the video clips are from the same camera with the same framerate, resolution, GOP structure, encoding etc, there is no guarantee that the Smart Copy will actually copy the video when exporting.
If you are mixing video from different cameras/devices or they have different video formats eg MOV and MP4 then Smart Copy will not work.
. . . . Smart copy doesn't work. How to use this option for avchd (mt2s) file . . . .
Can you provide a MediaInfo analysis of one of the AVCHD files you are importing - download MediaInfo from here, install and analyse one of the AVCHD clips and post the results, see this tutorial if you are not familiar with MediaInfo on how to setup MediaInfo and analyse a video clip.
Which export preset are you using? A screenshot would help.
You are trying to smart copy using MPEG-2 aren't you?
I have never seen it work in any other file format but I've only been a user since MEP 2018.
I don't have the current Movie studio 2023 but do have the VPX 14 equivalent and have been able to export using Smart copy but it is very limited and as John has suggested, a bit hit and miss.
If you could post the file on Google Drive or Dropbox (or similar file sharing site) we could check it out for you on registered systems.
It is a crying shame that Magix won't, in the main, smart copy anymore (it used to smart-render MPEG 2, which was just brilliant). Despite the fact that other paid and fee programs will happily smart copy/render all sorts of formats, Magix has never done so with H264 type files, despite the fact that they are the hardest to re-encode timewise let alone the drop in quality from a re-encode/re-render.
Maybe Magix knew we would eventually have cray-like computers and 8k video where it doesn't matter if you lose a bit of quality... 😎
. . . . I wonder if it is a limitation of the Trial? . . . .
I do not think so, no matter what I try I cannot get MMS 2023, or VPX 14 for that matter, to export AVCHD to AVCHD using Smart Copy.
One other issue is if the mts files audio is Dolby AC3 Surround Sound then they will be re-rendered to stereo, Dolby AC3 Surround Sound export is no longer supported.
The file is coming from a Sony Alpha 57 camera and although the MediaInfo data shows it has a two channel AAC audio output, in VPX 14 at least it is being read as having a 5.1 surround sound encoding (3 x two channel audio tracks) even with a silent sound track. If Movie Studio is reading the file the same way then it could be John EBs' observation is correct and that could be a reason the file is not able to be smart rendered.
. . . . Sony Alpha 57 camera and although the MediaInfo data shows it has a two channel AAC audio output . . . .
The audio is AC3 stereo - VPX/MMS do not specify which format the audio is.
MediaInfo gives:
Audio ID : 4352 (0x1100) Menu ID : 1 (0x1) Format : AC-3 Format/Info : Audio Coding 3 Commercial name : Dolby Digital Codec ID : 129 Duration : 31 s 680 ms Bit rate mode : Constant Bit rate : 256 kb/s Channel(s) : 2 channels Channel layout : L R Sampling rate : 48.0 kHz
and VLC confirms this - note there is also a third stream in the video file.
This could be a bug or, it may be that when AC3 audio is seen then extracting 3 channels is the default action, given that AC3 is normally used as a surround sound format.
I have tested this with other known AC3 stereo AVCHD files and get the same result.
If it is as I suspect the files can't be read correctly for smart copy to be enabled then you could try recording your videos in MP4 format instead that should give the audio track an aac audio file instead of an AC3 one and see if that works for you. It may still not work as the function is hit and miss as I said earlier. Even when it does work edits are often not exact as cuts must line up to the GOP structure.
The 2013 plus version is better. I will be using it, unfortunately on a virtual machine. It doesn't work on windows 11. I wanted to buy a 2023 but it doesn't make sense to me.