If you own an MPC 1000 or MPC 2500, an absolute must have is an aftermarket operating system. It is an upgrade that costs between $59 and $123 but money is well invested. I’m not sure how “JJ” the creator of the operating system attained his knowledge, but he definitely knows some of the AKAI operating systems. What does JJOS do? In short, it makes the MPC a better sampler.
Some of the best features are increased screen resolution and better workflow for chopping samples. If you’re familiar with the 2000xl and zones, you’ll love sampling on the MPC 1000 with JJOS. Another cool feature is the capability to change parameters on all 16 pads at once instead of only individually. When making a hip hop instrumental, JJOS will save time. It really is a must have. check it out here: http://www7a.biglobe.ne.jp/~mpc1000/