I've not ripped Tsubasa discs yet but I'm done with MADLAX.
On the physical side:
Both reissues seem identical to the regular 2004 releases. Including the upside down print for OST2 booklet and back cover. (Either a 2004 mistake that got carried over or it's intentional printing so you can put the front images together and get the full picture without taking booklets out.)
For audio:
OST1 reissue is a new disc but the data is identical to 2004 disc (different offset; exact same data without 0samples).
OST2 reissue is recognized as the 2004 disc by CTDB and Accurip and checks out against them (different offset).
edit:
Kay, done with ripping Tsubasa Chronicle reissues. Took a while.
I don't have the old physical releases to compare but I'm going to assume these Tsubasa reissues are identical to the old regular editions just based on most Victor reissues.
OST1 is a new disc but data is identical to the 2005 disc based on different rips (different offest).
OST2 is recognized as the old disc and checks out (different offset).
OST3 is a new disc but data is identical based on different rips (different offset).
OST4 is recognized as the old disc and checks out (no difference in offset).
edit2:
I really hope flying DOG continue these reissues with all the remaining soundtracks (though maybe next year... 'cause holy smokes I'm broke...).
El Cazador OST1 & 2
Erementar Gerad OST1 & Re-No:1 SOUND-SIDE
Velveteen Rabbit (probably unlikely :(((( )
.hack//EXTRA
AQUARIAN AGE OST (& SPHERE.1-6?)
also please figure out how to get the missing music on digital (Xenosaga3 from the last batch, El Cazador, Erementar Gerad, Velveteen Rabbit, AQUARIAN AGE spheres) :/