not seamless

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I imported 2 mts files that are supposed to be continuous from my Panasonic camera.  It was a 27 minute file of my son playing the piano.  Panasonic split up the files in 22 minute chunks.  When I put the two  files on the timeline and play it, there is an obvious stutter at the site where the two videos merged.  I render into mp4 file and the stutter is still there.  I have the latest version of Camtasia and also, the laptop I use is top of the line with 64G of ram and is designed for video editing.  I just bought Camtasia and the feature to seamless merge two files is very important to me as my camcorder split up files.  I sync videos and audios for my kids regularly and seamlessness is very important.  

I've spent over 20 hours trying to figure this out.  I also notice that if I split up the screen and then try to play it on Camtasia, it will also have the stutter...same results after rendering to mp4.  This is a deal breaker for me.  Please also recommend other software to consider that is better at seamlessly joining two video clips.

Much appreciated!
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Posted 1 year ago

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Hi D,

Yes, this is an issue I have experienced too. What I do is slightly overlap the two video clips. If you drop the second clip onto the track below the first clip, and zoom up the track display, so that each mark on the ruler equals one frame, then drag the second clip forward so that the last frame of the first clip overlaps with the first frame of the second clip, then this should solve your problem. I've not actually tried this with music yet, to be fair, but it is completely unnoticeable with speech - even in the middle of a word - so I'd be hopeful that it would be unnoticeable with music too - it is only a thirtieth of a second after all. If you give it a try, I'd be interested to know how you get on.



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You might want to go back and try this out.
copy /b [file1name] + [file2name] [targetfilename]

Open a command prompt or as some say a cmd.

This will join the two panasonic files so there is no gap.  It is called a binary copy and in this case it is joining two files and sending the result to the third.

You won't get any break in the video.

In regards to its only a fraction of a second which is true, it has a huge impact on a live recording when it is a solo instrumental  or singing.

Hope that helps.

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Thank you Damian for your help but I tried that but for some reason, my MTS files didn't work...the new target file that was made was 1k...

Marcus, Thanks for your help but since this is a piano performance, it was not seamless enough. :(

While researching this issue some more yesterday, someone suggested trying out lightworks.  I downloaded free copy yesterday and tested out with my two mts files...while the transition between the two clips is better in lightworks, it is still there.  This leads me to believe that the process of dividing the file into two mts clips caused the  issues of not seamlessly transitioning...not a software issue.  In lightworks, I can magnify a million times more on the timeline than on camtasia and what I was able to see at the end of the clipped mts file is blank space about .0001 sec of blank space...some files had more .0003....   This is not the case with  clipped mp4 files...which explains why  merging two clipped mp4 files works very well, almost seamless.  I guess the solution for me going forward is getting a camera that records continuous footage without spllitting up files.   Any suggestions?  Apparently it is common practice to split up files.  BTW, I have exfat partition on my sdxc card for the panasonic camera, which should hold more than 4G.  Until I can get my hands on such a camera, I will record in .mp4 format.

Hope my experience helped someone going through this trouble.

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I don't know of a video camera that doesn't cap the file size at some point.  For example, I just used a broadcast Sony camera (yes, a serious camera popular at CBS News) -- it breaks files at around the 2GB mark.  It records MOV or MP4 format, and there is no hiccup when I butt one file up against another.
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Joe Morgan

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I agree with rg  Diep,

You got a corrupted file at the splice point for some reason.Either video A or video B has an error.
This doesn't occur normally.
It's unfortunate.The best you can do is splice it together to the best of your ability.As you've probably already concluded.