I've just been reading just about everywhere that people claim that using emulators and iso loaders are completely illegal and should not be used at all and if you do you should be arrested. This issue is exactly the same as burning DVD movies and CDs. As long as you have bought the CD or DVD or UMD or cartridge then it is OKAY to have backups of such commercial materials. And if you can legally back something up and have the original in your hands, then you can use the backup for yourself as much as you want to! I was just getting irritated by people having misconceptions. And, of course, if you don't have a UMD of the game you are loading off of your memory stick, then it is illegal. But if you own lumines and decide to put it on your memory stick to cut back on load times and save you some precious battery life, then go ahead. The FBI is not going to come get you because such practice is legal.
Okay. Now I'm rambling. Sorry to bother you.