Recently I've been messing around a bit with my PS2 and decided to reinstall a few DDR titles to my hard drive. Everything from Max to Extreme work flawlessly, but I'm running into an issue where the arrows and music slowly go out of sync in DDR Supernova 1, 2, Extreme 2, and DDR X (US releases). I'm currently running OPL 0.9.2 and have tried some suggestions I've seen online involving turning on compatibility modes 3 and 7, but the problem persists. Under HDLoader 0.8c with no extra modes enabled all of these titles play flawlessly. While I certainly don't mind using HDL, I often find myself missing the VMC functionality. Can anyone offer up any suggestions or solutions to these issues? I'm running the games on an NTSC PS2 V3 model, and all of the games from internal hard drive.
Following on SP193's advice, make sure you turn on the compatibility mode which slows down the data rate to real CD/DVD speed and all of the Konami music/rhythm games will stop glitching. Even some that appear not to glitch (some Pop'n Music games) will improve. Same problem affect all Konami games which rely on konami's SDDRVIOP.IRX ("KCES SoundDriver Ver 0.1"). It gotten worse after 2003. And that also make these games unplayable (to a lessen extent than on OPL as the glitches are less noticeable) on HD Loader.
