rushmore
Extreme Android User
A little tribute to the "deep and dramatic" OPP song 
Like the international version, OTG works great on the GS3 without root. I have tested 64gb USB drives and plays hidef video without trouble and the experience is seamless (no extra stuff needed). Based on battery use, the actual draw appears to be nominal compared to micro sd, so is a practical media or file transfer solution (if needed).
Sweet
Added:
Will test a 1TB HD portable drive tonight. Reports are the GS3 powers them and works fine.

Like the international version, OTG works great on the GS3 without root. I have tested 64gb USB drives and plays hidef video without trouble and the experience is seamless (no extra stuff needed). Based on battery use, the actual draw appears to be nominal compared to micro sd, so is a practical media or file transfer solution (if needed).
Sweet

Added:
Will test a 1TB HD portable drive tonight. Reports are the GS3 powers them and works fine.