Konami didn't start using Windows for its games until IIDX 9th style, Pop'n 15, DDR X, and Drummania V...6 i think?. Before that, it was all custom hardware, ba

Konami didn't start using Windows for its games until IIDX 9th style, Pop'n 15, DDR X, and Drummania V...6 i think?. Before that, it was all custom hardware, based off of the PS1, PS2, or just an in-house creation. Older IIDX for instance uses a combination of a CD drive, a DVD drive, and an IDE drive for storing all its data, not to mention ROMs soldered onto the boards. The MAME team has actually just started to get the older games working, but require dumps which are hard to come by - thankfully the fans of these games have been collecting dumps for years and they are slowly being cataloged and added in. DDR has been a thorn particularly because they used a custom chip for decoding encrypted MP3 streams in the System 573, something that MAME hasn't wanted to touch due to patents. I highly doubt the newer games will go into MAME anytime soon - partly because they all run Windows XP embedded, and also because they are most likely considered "too new" for inclusion.