You have to subscribe to it, you get it from sony. it is 2 disks every 3 months or so for around 30 bucks or so.....not a bad deal If I say so myself...I just got a 2 year subscription so I wouldnt have to pay for one next year.......it is now one PSone only disk and one PS2 disk.
BTW the next one is out in MAY
Your Friendly Neighborhood ScottyJ