I just flip-top case modded my PS2. So I want to try and play burned games. I burned a disc of 'We Love Katamari' on Alcohol 120% [the files were MDS/MDF if that matters, the disc, a DVD-R] and booted up Swap Magic, DVD version. Like I read online, I waited until the menu came up, then flipped open the top and placed the disc inside. Then I pressed X and waited and waited. Then I got an error saying 'Not A Valid PS2 Disc' [or something of the sort] in blue. What am I doing wrong?