Zip is surprisingly CRAP at compressing music! 
But anyway, yeah FLAC is great. I would have quoted how much space 1000 albums would take in that but I didn't know the compression ratio.
You can assume an average album is 600mb. 1000 albums = 600GB or compressed with FLAC (lossless) about 150GB.
MP3, at any compression rate, is BAD as far as audiophiles are concerned. Stay away from it at all costs.
MO, I don't think Active Hiatus meant to insult you… It is hardly obvious from the initials that it stands for lossless.

But anyway, yeah FLAC is great. I would have quoted how much space 1000 albums would take in that but I didn't know the compression ratio.
You can assume an average album is 600mb. 1000 albums = 600GB or compressed with FLAC (lossless) about 150GB.
MP3, at any compression rate, is BAD as far as audiophiles are concerned. Stay away from it at all costs.
MO, I don't think Active Hiatus meant to insult you… It is hardly obvious from the initials that it stands for lossless.