Funny, I never had any problems with USBXTAFGUI. I’ve been able to upload my customs there and they work just fine with me. Also, it works on my old WinXP-running computer (which I usually use in conjunction with the Xbox), unlike Party Buffalo.
By the way, since it was mentioned: isn’t there any problem with having TU5 on the HD and TU4 on the USB stick? Doesn’t it generate some sort of conflict or something? Currently, I’m keeping TU4 on the HD just to be on the safe side.
You are about to leave Rhythm Gaming World and access the external songs DB. While no song or file sold for commercially available videogames is hosted there and only fan generated content is allowed, Rhythm Gaming World has no direct control over the database and no files are hosted here. Alright, we had to made you aware of this, now you can visit the database!