I was downloading Mario Kart DS Music and I noticed that a Music Track was Missing. I also noticed that the "GBA Luigi Circuit" and the "GCN Yoshi Circuit" was missing too, but that's because the Music from those Courses had already been played on other Courses that were Listed. This one, however, is not the same case. It's Found in the "Retro Grand Prix" and is in the "Lightning Cup":

"SNES Choco Island 2"

...There were also some "Mario Kart DS" Music Tracks that would not play on my Windows Media Player. Here's the Error Message:

"Windows Media Player cannot play the file. The Player might not support the file type or might not support the codec that was used to compress the file."

...and the Mario Kart DS Music Tracks are as follows:

"15_peach_gardens.mp3"

"16_bowser's_castle.mp3"

"22_snes_donut_plains_1.mp3"

"29_n64_banshee_boardwalk.mp3"

"36_win_race_(2nd-4th).mp3"

"43_versus_and_battle_mode_theme.mp3"

"54_wi-fi_menu.mp3"

Here
http://www.mediafire.com/?qmzz0lryhzg