UBARTMAR or UBARTAMA ??
 

On my ayu-mi-x 5 leaflet, the remixer for
HANABI [Amo no Iwato Hiraitayo remix] is UBARTMAR.COM

And, on Space Drive Route 1 the remixer for
HANABI [UBARTAMA remix] is UBARTAMA

I found slight similarity on these 2 remix(s), what I want to know is:
Are these two remixer the same ??
Which one is true ?? UBARTMAR or UBARTAMA ??

CDJapan lists it like this for Space Drive 1:

6 HANABI -UBARTAMA Remix / Ayumi Hamasaki

As you said, the remixer of the Hanabi song on Ayu-mi-x 5 is by Ubartmar, whom has a site here. While it doesn't seem to list Ayu on the site, I did find this site from Avex. It had this small bit of info about it:

09>>>�@HANABI�ƒ“V‚ÌŠâŒËŠJ‚¢‚½‚æREMIX�„Remixed by UBARTMAR.COM
�@ƒCƒJ“Vƒoƒ“ƒh�u—L‹@�¶–½‘Ì�v‚̃L�[ƒ{�[ƒh‚Æ‚µ‚ÄŠˆ–ô�Bƒoƒ“ƒh‰ðŽUŒã�AƒAƒŒƒ“ƒWƒƒ�[�^ƒŠƒ~ƒLƒT�[‚Æ‚µ‚ÄŠˆ–ô�B�Å‹ß‚ÍUBARTMAR.COM–¼‹`‚ÅŠˆ“®�BƒTƒCƒPƒf ƒŠƒbƒN�Eƒgƒ‰ƒ“ƒX�Eƒ~ƒbƒNƒX‚ð’®‚©‚¹‚Ä‚_‚ê‚é�B

Stone door ŠJ‚¢‚½‚æ REMIX>Remixed by UBARTMAR.COM of 09>>> HANABI< heavens It plays an active part as a keyboard of a cuttlefish heavens band "an organic life object." It plays an active part as an AREN jar / RIMIKISA after a band dismissal. It works in the UBARTMAR.COM name recently. A psychedelic transformer mix is made to hear it.

Searching for Rimikisa doesn't seem to find anything, so while I assume that it could be the same person (using a different alias), I'm not 100% sure on it.

Just as I thought... because when I hear to the 2 remix(s) it is about the same pattern......

Thanx for the info & for the site, Unimatrix Prime !
BTW, I still don't check the site, but I'll do it later when I have time;)