snap,
I was talking to my older brother and what not.
He said to me, “will I have time to going through the files or folders” but then i suggest a CD changer 
so now i’m thinking on a Deck that play CD and usb compatible :|:|
ummm , about 5 years ago, i would say, there was a system that came with a contraller and everything available at future shop, its has like a 15 gig harddrive blah blah blah and connected tp ur aux input on ur deck , my buddy bought one ,annoying as fuck too many songs to chose from
dont worry about the folder thing, just set it up like multiple cds if you want lol
eg:
folder 1 - 60 songs
folder 2 - 60 songs
etc…
or
Punk
Rap
Rock
Trance
Techno
and put of shuffle
well hector, i won’t get bored of my music since i dj for fun