I finally had the patience to sit down and try to record something on an emulated Sonic Rush, and as a result I have come up with videos of Mirage Road 1 and Mirage Road 2 with decent video quality, which you can get here. I told myself I would surrender the Mirage Road 2 trick only on video, so here it is :P
http://www.megaupload.com/?d=UO49J980http://www.megaupload.com/?d=EQZ64UGRThat being said, I
won't be doing any more videos for the time being. You may have noticed the lack of synchronized audio and sound effects in the videos. That's because if I left it there, it would be sped up by about 300%.
While the audio emulation runs perfectly, the emulator only runs Sonic Rush's gameplay at 1/3 of its normal speed, and it runs even slower when you get to a boss battle or special stage. It's a pain in the ass. I tried special stage 2 out and finished it upwards of 15 minutes later with the chaos emerald. Both runs I recorded were actually around 8:30 to complete as well. If there were savestates or the save file didn't delete itself every time I turn on the game, then I wouldn't complain about it as much, but those cases are also apparent.
Case in point, DS emulation needs to get better before I try to make more videos. Once that happens though, I'll have no problem recording almost every route for both characters :0