mpc jjos and 2000xl os 1.4

[damayor]

i hear people talking about jjos, but whats so special about it and what features does it include that the factory doesnt.

second question i have 1.4 on my 2000xl is there a updated version and if so what is updated?

 

[jyri]

second question i have 1.4 on my 2000xl is there a updated version and if so what is updated?

Do you mean 1.4 or 1.14? As far as I know, the latest (and last) one is 1.2. And it's meant for 2000xl's with memory card drives. So if you don't have mcd, your latest is 1.14 and if you have mcd, it's 1.2.
http://www.akaipro.com/mpc2000xl

JJOS is for 1000 and 2500 only, so you don't need to concern yourself with it. If you are interested in it's features anyways, you could read about it from the developer's website http://www7a.biglobe.ne.jp/~mpc1000/.