I got it a few days ago, lossless format, on jsharer.com (slow). Use Flashget and you'll have no problem to download the 5 cd's.
This is not my upload.
Format : Tak + Cue + Log
Decompression password : www.51disky.com

Disc 1
ftp://46011:820309894@58.215.91.174:2021/35555/jsnt_test_200909/LACA-9163.rar
Disc 2
ftp://23734:678339523@58.215.91.174:2021/51386/jsnt_test_200909/LACA-9164.rar
Disc 3
ftp://67521:644166859@58.215.91.174:2021/55083/jsnt_test_200909/LACA-9165.rar
Disc 4
ftp://124266:-1706515448@58.215.91.174:2021/16623/jsnt_test_200909/LACA-9166.rar
Disc 5
ftp://132880:885178843@58.215.91.174:2021/55102/jsnt_test_200909/LACA-9167.rar
Scans
ftp://159953:-457597081@58.215.91.174:2021/87249/jsnt_test_200909/bk-LACA-9163-67.rar
Great OST btw.