Milovana.com

Just discoverd a tool and didn't see it mentioned here, so I thought I'd share
LosslessCut

It allows you to cut, split, merge videos without any reencoding / quality loss. It's a wrapper for FFmpeg and very user freindly.

I've used it to remove sections from videos (e.g. embedded ads , content that I don't prefer) and export sections for a playlist of my favorite rounds. I know there are other tools that do this and members have created programs to manage rounds, but I found LosslessCut to be simple and straightforward for my needs, and free

You can download for mac, win, and linux.

Nice! I've been using avidemux for this, which can also du lossless cuts, saving out specific sections and quickly converting video container (mlk to mp4, for example) without reencoding the contents. I'll take a look at this one, though, in case it's better. :)

Thanks f1v38yf1v3!

I also been using AviDemux. I mostly use it to remove ads in tv shows, but it's a 2-pass procedure. Hopefully, LosslessCut will be easier to use.
I noticed that ads are not aligned with keyframes, so I always keep a little of those because the lossless handling is more important to me. However, if LosslessCut can do a little re-encoding just for that exception, and the rest lossless, that will be my new main tool.

Just tested it with a random mp4. So far so good. I love that you can easily cut and merge multiple sections at once. I don't think you can do that with avidemux. Definitely going to test this for trimming down source files for my next project. Thanks a lot for the tip. :)