I can confirm that I was able to record my system output through Acid without any fancy routing or cables. Just a tick box.
Do all your recording in acid as you navigate the media in question and then export one file to import in cubase.
There's tuts online. Only way I've found to record system audio without needing to individually import and convert files in cubase.
On a seperate note:
Good lord! Jump to conclusions much?
Some scenarios where recording youtube would be perfectly legal in any country: Content released under various creative commons licences, media in the public domain, a myriad of free royalty-free content created specifically for reuse, content where licences have been paid, content where express permission has been granted by creators.
Furthermore, these people preach who clearly do not understand what fair use actually is. There are many scenarios where to download a video or rip audio from YouTube and make transformative material from it (perfect example is political commentary) is perfectly legal, falls under fair use and wins time and time again in court. Get your facts straight before calling people thieves who ask valid questions!
But let's keep it 100 here. It's always bitter old instrumentalists who can't stomach the idea that sampling is an art
Go to facebook, this is a technical forum.