From wasabi360.com:
[QUOTE]
We have released Wasabi 360 Ultra firmware v1.2 BETA 1 which includes the following changes:
* Dynamic AP25 responses based on disc profiles are now supported, allowing AP25 protected titles to function with the latest 14699 dash and console specific dae.bin updates
* Support for GPT partitions added, enabling support for drives larger than 2TB
The updated handling of AP25 protection is in response so the recent AP25 updates that Microsoft has been rolling out via Xbox Live. Wasabi 360 Ultra is now capable of correctly responding to any random AP25 challenge, such as those found in the console specific part of dae.bin. This means that Wasabi 360 Ultra can now fully support any AP25 (and XGD3) games in conjunction with fully updated consoles running the latest 14699 dashboard. It is important to note that the way with which AP25 protection is handled has changed entirely with this release; full details may be found in the documentation within the update archive. Please ensure that you familiarise yourself with these changes before testing this BETA firmware.
Finally, if you are testing this BETA firmware, it is now safe to continue using Xbox Live with Wasabi 360 Ultra in pass-through mode.