A Blu-ray rip was uploaded yesterday with some nice 6 channel AC3 audio. I assume no one else has uploaded these yet, so I decided to be the first to do so.
I've uploaded most of these to my server (in the US) so that I don't hit Dropbox's bandwidth limits, and MEGA in case my server goes down.
Some of the song have multiple instrumentals; one marked with an "(S)" tag. This basically means the audio is ripped from the side left and side right speakers, and may be missing some upper frequencies/sound different than the front left and right speakers (although, I have tried my best to get the upper frequencies to sound right). I usually do this because the front left and right speaker channels contain the vocals for the song, and the only other way to get rid of it is by using the side left and right channels instead. They don't sound bad, but they're not "clean" instrumentals.
Also, I know there are large amounts of silence in some clips. I didn't realize that I had forgotten to remove them until after they were exported. Sorry!
My blabbering aside, here are the rips!
Full audio rip
Contains all the audio channels ripped directly from the movie and converted to WAV (i.e. 6 WAV files, one for each audio channel, rar'd) 3.5GB! Please don't download this from my server unless you absolutely need to. You'll just slow down the downloads for everyone else. Thanks.

MEGA: https://mega.co.nz/#!TIcFADaT!H_ykslKDg ... PyH71qcKo0
DIRECT: http://xslim.tk/mlpuploads/EQGirls.rar
Audio rip - Center track (voices minus the vocals from some songs):
MEGA: https://mega.co.nz/#!jdt3RJyI!IJ-SJR6l2 ... mP9X7wUVD8
DIRECT: http://xslim.tk/mlpuploads/EQGirlsC.wav
Audio rip - Without the center track (no voices, but vocals on some songs):
MEGA: https://mega.co.nz/#!CVFjETRa!LJLgUAXEc ... D9ER0Uiaos
DIRECT: http://xslim.tk/mlpuploads/EQGirls_audi ... mental.wav
Songs
MLP Theme Song Remix
Song
MEGA: https://mega.co.nz/#!DZkSxSoa!XVAeHHP13 ... dhjA4c2ZfA
DIRECT: http://xslim.tk/mlpuploads/EQGirls_mlp_song.wav
MP3: http://xslim.tk/mlpuploads/mp3/Equestri ... 0Remix.mp3
Song (no SFX)
MEGA: https://mega.co.nz/#!SQ8mCa6Q!SPLA6xiFs ... wabOLRh3As
DIRECT: http://xslim.tk/mlpuploads/EQGirls_mlp_song_nosfx.wav
Instrumental (S)
MEGA: https://mega.co.nz/#!GZ8FGKSY!eppyY1eXr ... zKUZNsSVSE
DIRECT: http://xslim.tk/mlpuploads/EQGirls_mlp_ ... ntal_s.wav
This Strange World
Song
MEGA: https://mega.co.nz/#!OYMBlSyY!Jc7wznnUo ... rADUnZrnyI
DIRECT: http://xslim.tk/mlpuploads/EQGirls_stra ... d_song.wav
MP3: http://xslim.tk/mlpuploads/mp3/Equestri ... 0World.mp3
Acapella
MEGA: https://mega.co.nz/#!XRFh2JQa!Fz9lk1vgG ... bYTzOEpCfA
DIRECT: http://xslim.tk/mlpuploads/EQGirls_stra ... apella.wav
Instrumental (with backing vocals/harmony + vocal reverb)
MEGA: https://mega.co.nz/#!bZ0hiTbY!R4nw5FPjD ... zI43-wxxLg
DIRECT: http://xslim.tk/mlpuploads/EQGirls_stra ... mental.wav
Instrumental (S)
MEGA: https://mega.co.nz/#!DANX0KbI!G5SHcE4Kq ... wfneTWckgg
DIRECT: http://xslim.tk/mlpuploads/EQGirls_stra ... ntal_s.wav
Chords:
https://dl.dropboxusercontent.com/u/610 ... hords.html
Bass MIDI:
https://dl.dropboxusercontent.com/u/610 ... ldBass.mid
Equestria Girls/Helping Twilight Save The Crown
Song
MEGA: https://mega.co.nz/#!vIdRAADB!MVhj-XNfh ... WhTOyaIAuA
DIRECT: http://xslim.tk/mlpuploads/EQGirls_crown_song.wav
MP3: http://xslim.tk/mlpuploads/mp3/Equestri ... ia%20Girls).mp3
Acapella (only solos and the intro "drums")
MEGA: https://mega.co.nz/#!aRkkSJCB!efNIWVpWp ... b-ydWjp3YM
DIRECT: http://xslim.tk/mlpuploads/EQGirls_crown_acapella.wav
Acapella (DIY, entire song)
MEGA: https://mega.co.nz/#!6AF23SIQ!K0OJ9WENT ... _KStCWjZlE
DIRECT: http://xslim.tk/mlpuploads/EQGirls_crow ... la_diy.wav
Instrumental (best version, no vocals)
MEGA: https://mega.co.nz/#!DE0DjJYB!NAXUlRBPw ... PZmhc-kOXs
DIRECT: http://xslim.tk/mlpuploads/EQGirls_crow ... l_best.wav
Instrumental (And vocals, not including solos)
MEGA: https://mega.co.nz/#!GIcBzZCK!YpxVUFAoN ... sRBpDops5s
DIRECT: http://xslim.tk/mlpuploads/EQGirls_crow ... mental.wav
Instrumental (S) (still has vocals/reverb, but not as noticable)
MEGA: https://mega.co.nz/#!WVVkBRQJ!B_TEZg4LE ... DmTGBnGF4o
DIRECT: http://xslim.tk/mlpuploads/EQGirls_crow ... ntal_s.wav
Time to Come Together
Song
MEGA: https://mega.co.nz/#!zA8xWI6J!CF2Vq0QK2 ... MUwmFfyU4o
DIRECT: http://xslim.tk/mlpuploads/EQGirls_time_song.wav
MP3: http://xslim.tk/mlpuploads/mp3/Equestri ... gether.mp3
Song (without voices at the beginning, still has some very quiet reverb)
MEGA: https://mega.co.nz/#!OBMlwY4a!Y86q7T87J ... DB4EsyY8WA
DIRECT: http://xslim.tk/mlpuploads/EQGirls_time ... ferent.wav
Acapella (DIY, entire song)
MEGA: https://mega.co.nz/#!6ZMUELQT!YrwMK0Uuk ... X9ClJMo3RM
DIRECT: http://xslim.tk/mlpuploads/EQGirls_time ... la_diy.wav
Instrumental (S)
MEGA: https://mega.co.nz/#!XMkVgaLL!LjMy6U9US ... UwOy6Kr3js
DIRECT: http://xslim.tk/mlpuploads/EQGirls_time ... ntal_s.wav
This is Our Big Night
Song
MEGA: https://mega.co.nz/#!HIkSRRpS!JwN-xlaQv ... VIY9Egdivs
DIRECT: http://xslim.tk/mlpuploads/EQGirls_bignight_song.wav
MP3: http://xslim.tk/mlpuploads/mp3/Equestri ... 0Night.mp3
Acapella (DIY, entire song)
MEGA: https://mega.co.nz/#!DIEnTC6Z!D_L7XEk0h ... PcD1qoATdw
DIRECT: http://xslim.tk/mlpuploads/EQGirls_bign ... la_diy.wav
Instrumental (S) (vocal reverb)
MEGA: https://mega.co.nz/#!3VcmGa4K!SadKqhNF2 ... smaebm5Aq8
DIRECT: http://xslim.tk/mlpuploads/EQGirls_bign ... ntal_s.wav
This is Our Big Night (reprise)
Song
MEGA: https://mega.co.nz/#!6AFwzRCI!P-ax20Sy2 ... YCGaOlL9ro
DIRECT: http://xslim.tk/mlpuploads/EQGirls_bignightre_song.wav
MP3: http://xslim.tk/mlpuploads/mp3/Equestri ... 20(Reprise).mp3
Acapella (DIY, entire song)
MEGA: https://mega.co.nz/#!fVVxmTTZ!MJeA7TcIP ... 4OY8IgoRQs
DIRECT: http://xslim.tk/mlpuploads/EQGirls_bign ... la_diy.wav
Instrumental (S) (vocal reverb)
MEGA: https://mega.co.nz/#!KAMU3LYZ!flAOQXgo5 ... 7xMH_8jkhg
DIRECT: http://xslim.tk/mlpuploads/EQGirls_bign ... ntal_s.wav
A Friend for Life (credits song)
Song
MEGA: https://mega.co.nz/#!6AVCza6J!POj2yw-Mn ... klVkfkivGk
DIRECT: http://xslim.tk/mlpuploads/EQGirls_friend_song.wav
MP3: http://xslim.tk/mlpuploads/mp3/Equestri ... 20Life.mp3
Acapella
MEGA: https://mega.co.nz/#!3VcEDAII!bEo8Fl9v4 ... lM2rWdKNIQ
DIRECT: http://xslim.tk/mlpuploads/EQGirls_friend_acapella.wav
Instrumental (best version, no vocals)
MEGA: https://mega.co.nz/#!2YFjhDCK!PrBsb1xLc ... IaxyBlUekA
DIRECT: http://xslim.tk/mlpuploads/EQGirls_frie ... l_best.wav
Instrumental (with backing vocals/reverb)
MEGA: https://mega.co.nz/#!PMVAjQoD!ICegu1OCX ... y0pBpi0334
DIRECT: http://xslim.tk/mlpuploads/EQGirls_frie ... mental.wav
Instrumental (S) (with backing vocals/delay)
MEGA: https://mega.co.nz/#!PRU1ASKK!Oas8SnCDP ... Y3kMarIK4k
DIRECT: http://xslim.tk/mlpuploads/EQGirls_frie ... ntal_s.wav
If any links go down, there are wrong tracks used in a .wav file, or any other problems, reply and I'll fix it ASAP.
If you use any of these tracks in a song or a video, it'd be nice if you could mention me in a description, as ripping all these tracks took a while (I've been working on this for the past 5 hours

Enjoy!
edit: Uploads are taking longer than I expected, blame Norwegian ISPs.

edit2: Full audio rip uploaded to MEGA.
edit3: Center channel rip uploaded to MEGA.
edit4: DIY acapellas done by phase cancellation, you can still the background music but it's not as noticeable (compare them yourself, they're quite a lot better)
edit5: Updated Helping Twilight Win The Crown + fixed a link
edit6: Added better instrumentals for Helping Twilight Win The Crown and A Friend For Life
edit7: Updated MEGA links.
edit8: Added chords + bass midi for Strange New World
edit9: Added MP3s for all the songs (320kbps)