Ten years ago, I used to organize meetings with some friends (sharing the hobby of collecting music) and everyone presented their new adquisitions (new CDs or mint vinils), and the others guys copied the musical stuff to their computers (thru a not trivial process called ripping). At that time, the only way to obtain scarce discs.
Today, no meetings are necessary: we (the old friends) put the name of the performer (or title) in any internet search engine and we have a lot of sources with files available for download (no more rippings). Mainly mp3s sources. Unfortunately, I don't like mp3s files. My ear is able to detect artifacts inherent to this type of compression.
My friend Rod (from the old meetings) told me about a website that contains many music in lossy and lossless format, and (this is the best part) members post stuff every day.
A lossless format is a compressed file, but unlike lossy mp3s, the compression doesn't affect the quality of the original sound.
So these days my CD writer has been very busy burning a lot of discs.
PS: Burrrn (with three Rs) is the name of a small program able to read lossless files and burn them onto a CD-R.