Here's an update:
I found an amazing deal on a Japanese PS2. I got the limited edition white one for under $200! (the regular ones were from $350-$400).
Now here is my new delema. I've ordered the special Japanese PS2 Karaoke Revolution Mic and the Anime Expansion Pack for the con. But I need the Origional Japanese Karaoke Revolution to make the expansion pack work. I've googled and googled....every one I see has the word expansion in it. I don't know enough Japanese to tell if it is saying that it is an expansion pack, or it works with all of the expansion packs... There seem to be two different Jpop collections both with the number 1 on them, so I think it might be one of them.
I'm hoping someone can help me soon, because I want to have all the songs available for it with Romanji lyric Sheets available for the convention! (the Japanese version is in Romanji/Kanji and there is no vocal track to help like in the US version. Just a midi file of the tune that one can adjust the volume of).
Please Help! I know this would really be a big hit at the con!
Oh, one more question. Do I need special Japanese memory cards too?