Dolby Digital (AC3) and DTS over ATI HDMI XP

For Windows XP:  If you have been unable to get AC3 or DTS passthrough via your ATI Graphics card with HDMI try this official ATI driver:

ATI Catalyst™ 9.4 HDMI Audio Driver for Windows XP Professional/Home Edition

The Catalyst™ Software Suite states that the HDMI Audio driver is supported on the Windows Vista OS only at this stage.  Its never straightforward, especially with the HDMI driver hiding on the AMD website.

Here is the Realtek ATI HDMI Driver, this may also help.

Convert a gpt protective partition

I recently put a 64 bit Vista formatted Drive into my XP HTPC box and found it was unreadable and could not be formatted.  Computer Management displayed the drive as a GPT Protective Partition. Unfortunately Windows XP cannot read or write this type of filesystem let alone mount the drive. A GPT disk uses the GUID partition table (GPT) disk partitioning system.

Your Options are:

or Using the Windows interface

Windows XP Disc support Windows FAQ.