The Cinelerra entry needs updating. Not only does the provided install link not work, the separate branch GG Infinity supports 8 Linux distros and provides instructions to auto-update every month (see https://www.cinelerra-gg.org/downloads/). If the different branches are confusing, visit https://en.wikipedia.org/wiki/Cinelerra which will clarify it.
I have worked with several commercial offerings including Final Cut Pro, Premiere and Video Wave. I recently used Cinelera (on Ubuntu Hardy) on several projects and I like it very much. Cinelera is much more powerful than Video Wave and is more near the class of Final Cut Pro and Premiere. Sure, Cinelera has some stability issues from time to time but they are not major and it also recovers nicely since it saves your most recent changes anyway. To be fair, I have seen similar stability issues with the commercial products as well so I do not find this aspect of Cinelera any different.
After briefly testing all the various open-source video editors I could find easily available for fedora 13, I came to the conclusion that kdenlive was the best fit. By and large most of the editors were plain unusable for more than 5 minutes or just had too many limitations. kdenlive has its own faults, including that its documentation is not always clear and one must refer to it constantly when figuring out the UI (hint: video tutorials were so useful to understanding the docs). Essentially, I can now do almost anything I need to with kdenlive now, but I would greatly appreciate it if the devs could improve rendering time, update the dvd creation wizard to support blu-ray, and add more rendering options (for example, ogv output does not support quality levels, only bitrates). As for stability, I saw several crashes when I was first exploring features, but none since.
The problem average people have with Cinelerra is that it is truly complicated and requires time spent learning about the real underpinnings of video production technology in order to use it to its full potential. But the learning is worth it. What a person learns by digging deep into the intricacies of video production will allow a deeper understanding of what is going on with even “hand-holding” software.
Blender 2.8 makes video editing a LOT easier (start UI, easy to drag file, left click select...). It's still a bit harder to learn than other tools but for power users each shortcut you'll learn can be applied almost everywhere (e.g. pressing "i" on a numeric field to keyframe the value, or "g" to grab and move and element...). It's very powerful especially if you want to also include 3D in your videos. However many standard tasks will take more time in Blender: The preview is slow, to do a high quality zoom in animation you may need to use a Compositor or instead crop, rendering in 10 bits requires a lot of temporary disk storage, video stabilization is also a pain... Overall I'd suggest it more for someone interested in 3D doing also video editing. See More
Applying effects is as easy as drag and drop. But if you want to edit them, you'd need to right click on each clip and select Properties. You'd need to experiment with not-so-well documented parameters which take forever to preview just to see if you are on the right track. It is sort of easy to learn unless you want more than drag and drop controls. See More

The only criticism I might have for Kdenlive is that it looks like an open source program. It isn’t the most user-friendly application to work with and appears to have been programmed by someone who knows what they are doing but expects you to also know what they are doing. It isn’t the most polished experience, and some things seem to be a bit obtuse to do.
Pierre and Megan, you’ve been trolling these comments for two full years, now. I can see, after carefully reading all of the commentary and the thought behind each of them, that you both are only here to troll and discourage. Neither of you have offered any real concrete proof of anything, and you’ve used smoke and mirrors to try to defend merely what are empty opinions. After two full years of trolling this particular page it’s about time you both got told to get a life.
Cinelerra *had* the most promise and it’s probably good if you want to run a TV station. However, it’s not creative at all. Simple edits are easy. However, anything else can become a stunt. IMO, Kdenlive has seen the quickest growth. Lives is also doing well. In the next few years we may see those apps grow into the free alternative of Finalcut – but not Cinelerra. It does what it does, and there is no need to change.
I’m having trouble with avisynth, just the process of editing with it. I know virtualdub is connected with it, but I can’t find anyway to connect virtualdub with windows movie maker, well to open it(capture video). Anyhow, I know will try Linux. Will it give the same quality as I see on my computer when it is uploaded to youtube? Yes, beginner here…
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