Output quality

Hello,
I am really begginer. I tried to edit the video and while pops up message "GPU memory is full". I know my computer is not strong enough, but I assume that rendering will go longer, but the video is demaged.
Here is what I did - just cut out video and add picture instead. But the transition is not working with the final video.

And here the final video (error is at the end).

Can you please help me where is the problem? I know its me, just where to start

With memory issue render won't take just longer- it may be broken as you experienced.

If you've used Noise reduction try to render the video without Noise reduction, then apply Noise reduction over the rendered video turning off the already rendered nodes.

If the issue is not Noise reduction, reconsider to render separatelly the most GPU demanding nodes.

Could you share your hardware specifications with the OS you are using, it will make things easier to assist, if there is a workaround.

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System Information
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Time of this report: 2/12/2019, 07:20:14
Operating System: Windows 10 Pro 64-bit
System Manufacturer:
System Model:
Processor: Intel(R) Core(TM) i5-3450 CPU @ 3.10GHz (4 CPUs), ~3.1GHz
Memory: 8192MB RAM
Available OS Memory: 8162MB RAM
Page File: 8010MB used, 11926MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 12
DX Setup Parameters: Not found
User DPI Setting: 106 DPI (110 percent)
System DPI Setting: 120 DPI (125 percent)
DWM DPI Scaling: Disabled
Miracast: Available, no HDCP
Microsoft Graphics Hybrid: Not Supported
DxDiag Version: 10.00.17763.0001 64bit Unicode

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Display Devices
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Card name: NVIDIA GeForce GTX 650
Manufacturer: NVIDIA
Chip type: GeForce GTX 650
DAC type: Integrated RAMDAC
Device Type: Full Device (POST)
Device Problem Code: No Problem
Driver Problem Code: Unknown
Display Memory: 5065 MB
Dedicated Memory: 984 MB
Shared Memory: 4080 MB
Current Mode: 1440 x 2560 (32 bit) (59Hz)
HDR Support: Not Supported
Display Topology: Extend
Display Color Space: DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709
Monitor Model: DELL U2518D
Native Mode: 2560 x 1440(p) (59.951Hz)
Output Type: HDMI

[Peter Chamberlain]

The GeForce GTX 650 is a very low power card so that might be a good place to start.
8GB of system memory is also on the low side.

Are the clips SD or HD?

The GTX 1060 OG6 will come with the new memory today.
Will see...