[quote name='mtxbass1']Um, will ANY Singstar allow that? The PS2 versions are BC now, but I've never once heard of being able to make a playlist from the discs.[/quote]
Indeed. You can swap the discs out, so each of the PS3 SingStars (SingStar, SingStar ABBA, and SingStar Vol. 2) will allow you to play the PS2 songs, but only one disc at a time. You can't compile each PS2 disc's songs to one big playlist or anything like that.