Tools:
REQUIRED:
* VGMToolbox (latest release - http://sourceforge.net/projects/vgmtoolbox/)
* HCA_Decoder (latest available - http://www.mediafire.com/download/858tqikj74qinw4/HCA_decoder.zip)
Nice to have - depends on what you prefer:
PC:  Wireshark + Bluestacks (or Andyroid)
Tablet (Android) : tPacketCapture (doesn't require root and it's free) + wireshark on PC to read the sniffs

Pre-reqs:
> Install CGSS on your device or bluestacks/andyroid
> VGMToolbox set up:
> - extract the zip
> HCA_Decoder set up:
> - extract the zip
> - rename decode_options(...).bat into decode.bat
> - open the file with a text editor delete everything up to the 'set' line before the 'for' loop
> - replace the 'set' line with the following:
set X=-v 1.0 -m 16 -l 0 -a F27E3B22 -b 00003657

*** IF YOU DON'T WANT TO SNIFF OR ARE SCARED OF THE INTERNET POLICE ***
Instead of doing steps 1-10, transfer all the files from /sdcard/Android/data/jp.co.ban...BNEI0242/cache/l to your PC (read the documentation of bluestacks/andyroid as you may need root permissions to access the folder) and put them in a single place, ex. C:/songs
Keep in mind that if you use this procedure, you'll be limited to the files you've obtained by playing the game.
*** DONE WITH THE SCARY PART - SKIP TO STEP 12 ***

Steps:
1. Start up your sniffing software and capture traffic. (Wireshark on PC or tPacketCapture on Android)
2. Set the following filter on wireshark: "http.host == game.starlight-stage.jp && http.request.method == POST" (If you're on an android device, do steps 3 and 4 and transfer the capture file over to your PC and open it with  wireshark then set the filter and continue to step 5)
3. Start up CGSS and go to into the home tab. (just so that there is some communication with the server)
4. Stop the capture and kill CGSS as we won't need it anymore.
5. If you set up the filter above, you should see a couple of packets.
6. Examine the HTTP headers and look for RES_VER - write it down.
7. copy the following URL and replace RES_VER with the value from the header.
http://storage.game.starlight-stage.jp/dl/RES_VER/High/Sound/Android/manifest/soundmanifest
8. Look for the files that interest you:
> l/ - live music (song files)
> s/ - sound effects
> r/ - room sound effects
> v/ - card / character voices
> c/ - story related
> b/ - bgm
9. Once you've found a file that interests you, copy the name, ex.: l/song_0001.acb
10. Replace RES_VER with the value from the header, and replace FILE_NAME with the song that interests you:
http://storage.game.starlight-stage.jp/dl/RES_VER/High/Sound/Android/FILE_NAME
ex:
http://storage.game.starlight-stage.jp/dl/10010201/High/Sound/Android/l/song_0001.acb
11. Copy all the downloaded files to a folder you'll remember, ex: C:/songs

12. Start up VGMToolbox
13. Navigate the tool-tree: VGMToolbox > Misc. Tools  > Extraction Tools > Common Archives > CRI ACB/AWB Archive Extractor
14. Select all the files from C:/songs (or whatever directory you are using) and drag them to the VGMToolbox's CRI ACB/AWB Archive Extractor.
15. In the folder where you had all the .acb files, new folders should've appeared _vgmt_acb_ext...
	Inside each of those folders, you'll find a .hca file.

16. Copy all of the .hca files to a single folder (for ease of manipulation)
ex: C:/songs/hca
17. Open a second explorer window and go to the path where you extracted the HCA_Decoder
17. Select all the .hca files and drag them over to the decode.bat file (yes, drag and drop)
18. Now you have .wav files for the songs, I suggest converting them over to mp3 to save up space.