deleting preset songs an sounds?

hi everyone my new mpc1000 arrived today! this thing shits on my 2000xl i love it, i cant wait to upgrade the memory and get the jj os. but the one thing i dont love are these corny demo songs and sounds, ive tried deleting the programs and sequences but somehow they keep coming back after i switch the mp off an on again, how do i keep these filthy little beats out of my mp brain?
i promise i wont make a habit of asking questions

there's no need to delete them, just turn off Autoload (look it up in the index of the manual, it will tell you how to do it)

deleting them doesn't have much benefit, so if you just stop them from loading automatically you will get basically the same result

thanx alot man appreciate it