Copy short clip to produce longer video

Cubase is indeed audio only.

Perhaps the endless flow of water over rocks is not the best example.  Clouds, though, would also be a challenge.  This young man, however, seems to have mastered this type of looping.  Seamless Loops - After Effects Tutorial - YouTube

In After Effects, however, alas.  The $25 pm for AE is not justified for my minimal needs.  It seems easy enough to accomplish, though.

I was hoping, in my ignorance of the features of Premiere Elements, that it could also do something similar.  Apparantly, I was wrong.  Never mind, I'll figure something out. 

Depending on the source material, it can be very simple in Cubase.  Say, for instance, that we extracted the audio from my flowing water video.  We would set up the section where we plan to make the split and loop a few seconds either side of it.  Then we would listen out for repeated high or low points in the loop.  The wav file graphic would help in determining the appropriate points.  We would then expand the wav file graphic to choose the two points that matched best and split the clip at those two points.  We would then delete the midsection and join the two remaining clips.  The crossfade is best kept in the low milliseconds.

For a musical piece recorded to a click track, our ears and the grid would help us in our choice.  For non click recordings, our ears would be the best judge.  But the process would essentially be the same.

With regard to matching organic video clips, nothing is perfect but I would have thought that it would be within the capabilities of the editing software to accomplish this simple task?

I don't wish to denigrate the obvious skills of movie editors but they have accomplished far greater things with blades and sticky tape.  And not always with Scooby Do transitions.

Anyway, I have taken up far too much of your time already.  I appreciate your speedy and helpful replies, and will now take myself off to experiment with the software.  Hello Cubase 6.0 again? 

Thanks, Steve.

Thank you very much for the quick reply, Steve.  I downloaded and watched your videos - they are very informative but, alas, do not specifically address my particular issue.

I am attempting to seemlessly extend short video clips to two or three times their original length.  I am hoping to avoid obvious transitions.

I am a long time Cubase user.  I accept that audio files are far less complex beasts, yet I am frustrated at the difficulty I am experiencing with the entry level edition of Premiere.

I am currently using the trial version of Premiere and Photoshop Elements.  I have ordered the full versions but they won't be delivered until Wednesday of next week.

I am also running the trials on my laptop, which only has 8GB of RAM, and perhaps more worryingly, has integrated graphics.  The full versions will be installed on my desktop, which is a much beefier beast.

I include a short video of my attempt to run a short video clip, taken with the trial version of Camtasia.  (https://www.youtube.com/watch?v=VIAJpRu3gAY)

As you can see, I was bang out of luck getting anything done.  I'm thinking that I'm irretrievably stupid.  Which is where I cry uncle, lay down across the train track, and in my best Penelope Pitstop voice, cry "Hay-ulp!!"

I see from some Youtube videos that Premiere Pro has a crossfade feature that is not to dissimilar to those I'm used to using in Cubase.  I think that it may be called (it's late and I'm tired)  "Wobble."  Does Elements have something similar?

Thanks again, Steve.  I appreciate your assistance more than I can say.