Picked up the game at release yesterday.
Had to look hard for a store that had the pre-order goods (now that's new) but was pleasantly surprised with what I got: not only the PSP rearrange soundtrack (2 discs, NW10102800, as advertised on the falcom website) but also Brandish Original Sound Track ~FM TOWNS & Renewal~ (2 discs, BR-OST-FR, not for sale).
The rearranged soundtrack is amazing so far. Simply love the new arrangements (live instruments for the win!). I am a huge biased Brandish fan but I honestly cannot see anyone being disappointed with this.
The game itself is pure gold as well (though I'm probably the only one here who enjoyed the original). Incredibly short loading times (yay!), awesome new artwork, choice between FM TOWNS or rearranged BGM and an incredible atmosphere. Falcom really knows how to work the PSP, looking forward to Ys 7
#edit: removed the rips here as they're widely available on the interwebs