>>10148
I dunno wtf a 9xbuddy is, but youtube-dl is the best tool for such. Works native on Linux, works through cygwin ( http://cygwin.org/ ), probably works on windows native (run pip.exe install -U youtube-dl)

Also get ffmpeg, for Linux your distribution has it, otherwise there's a windows pre-compiled static build for this.
You can run the windows native apps through cygwin, makes it easier, but can also just use cmd.exe on winblows.

Youtube and similar sometimes have video in one stream and audio in a different stream of a different format. Youtube-dl will combine these into an "mkv" (basically just a layered format for other formats) which you will want to convert to mp4 or webm for viewing.
Basic steps I use are:

1. ffmpeg -i input_file.mkv

This will produce a bunch of output, in the "video" layer section, look for a line like this:

Duration: 00:00:59.04, start: 0.000000, bitrate: 680 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 547 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc

I've bolded the important parts. You can scale to a different resolution by finding the ratio and multiplying.