Reply to Storing old music (digital warehousing)

Now here is a good question for all the DIGITAL djs out there.
right now im looking at two folders i want to remove from my external drive.
Combined they total about 300 gigs of just music.
The music WAS for the radio station AND for my gigs but i really doubt im going to play any of these anytime soon.

Usually in the REALLY OLD DAYS, i would just burn them all the CD and keep them in a CD book and tuck it away right? Well not this time so i impose to all of you a simple question.

What are you doing with all your REALLY old tracks?
How are you storing them without taking up any VALUABLE space in your gear ?

Honestly i do have a tonne of blank DVDs and i could just burn them as mp3 to them but lets face it
a DVD is around 4 - 8 gigs right? And here i have 300 gigs of music to get rid of so now what?