There are a lot of small bands posting on YouTube that are apparently recording their own music. The quality of some of their recordings (like Pomplamoose) seems to be studio quality. I can see from the video they are using Neumann mics but what might they be using for the recording?

I have not been keeping up with the latest recording equipment. Im certain its something digital. Are they recording this with a computer or is there a digital recording device?

You can see most everything they are using in the video but I am missing the recorder.