the chkdsk blue screen error was annoying and is definately fixed that same error also showed up if you used partition magic. The sound quality does seem to have gotten a little better. I know i can now run the hardware acceleration settings and sampling rates at their highest settings without getting any sound looping. I couldn't do that before. cpu load in audio winbench 99 44.1khz 16 bit 32 voice streaming went from 12.4 with the old drivers to 7.03 with these drivers. All except 2 of the directsound 3d cpu loads decreased with this new driver. On the other hand the cpu loads increased slightly in all the non 3d directsound tests. in each line there are 2 numbers at the end those are the cpu loads for that test. The first number is the old xp driver and the second number is the new beta driver. The excel sheet didn't translate well to the post.
driver versions oldxp new beta
Audio WinBench 99/DirectSound CPU Util, 22 kHz, 8 bit, Static:Hardware Voices s 32 1,2 32 1,3
Audio WinBench 99/DirectSound CPU Util, 22 kHz, 8 bit, Static:Voice 8 (Percent Used) t 2.11 3.1
Audio WinBench 99/DirectSound CPU Util, 22 kHz, 8 bit, Static:Voice 16 (Percent Used) t 2.67 9.41
Audio WinBench 99/DirectSound CPU Util, 22 kHz, 8 bit, Static:Voice 32 (Percent Used) t 2.24 4.04
Audio WinBench 99/DirectSound CPU Util, 22 kHz, 8 bit, Streaming:Hardware Voices s 32 1,2 32 1,3
Audio WinBench 99/DirectSound CPU Util, 22 kHz, 8 bit, Streaming:Voice 8 (Percent Used) t 2.2 3.19
Audio WinBench 99/DirectSound CPU Util, 22 kHz, 8 bit, Streaming:Voice 16 (Percent Used) t 2.44 3.35
Audio WinBench 99/DirectSound CPU Util, 22 kHz, 8 bit, Streaming:Voice 32 (Percent Used) t 3.36 4.84
Audio WinBench 99/DirectSound CPU Util, 44.1 kHz, 16 bit, Static:Hardware Voices s 32 1,2 32 1,3
Audio WinBench 99/DirectSound CPU Util, 44.1 kHz, 16 bit, Static:Voice 8 (Percent Used) t 2.68 2.72
Audio WinBench 99/DirectSound CPU Util, 44.1 kHz, 16 bit, Static:Voice 16 (Percent Used) t 2.99 3.75
Audio WinBench 99/DirectSound CPU Util, 44.1 kHz, 16 bit, Static:Voice 32 (Percent Used) t 4.48 4.91
Audio WinBench 99/DirectSound CPU Util, 44.1 kHz, 16bit, Streaming:Hardware Voices s 32 1,2 32 1,3
Audio WinBench 99/DirectSound CPU Util, 44.1 kHz, 16bit, Streaming:Voice 8 (Percent Used) t 1.96 3.07
Audio WinBench 99/DirectSound CPU Util, 44.1 kHz, 16bit, Streaming:Voice 16 (Percent Used) t 2.93 3.9
Audio WinBench 99/DirectSound CPU Util, 44.1 kHz, 16bit, Streaming:Voice 32 (Percent Used) t 4.58 5.79
Audio WinBench 99/DirectSound3D CPU Util, 22 kHz, 8 bit, Static:Hardware Voices s 32 1,2 32 1,3
Audio WinBench 99/DirectSound3D CPU Util, 22 kHz, 8 bit, Static:Voice 8 (Percent Used) t 3.07 2.59
Audio WinBench 99/DirectSound3D CPU Util, 22 kHz, 8 bit, Static:Voice 16 (Percent Used) t 4.39 2.67
Audio WinBench 99/DirectSound3D CPU Util, 22 kHz, 8 bit, Static:Voice 32 (Percent Used) t 5.79 4.14
Audio WinBench 99/DirectSound3D CPU Util, 22 kHz, 8 bit, Streaming:Hardware Voices s 32 1,2 32 1,3
Audio WinBench 99/DirectSound3D CPU Util, 22 kHz, 8 bit, Streaming:Voice 8 (Percent Used) t 3.06 3.15
Audio WinBench 99/DirectSound3D CPU Util, 22 kHz, 8 bit, Streaming:Voice 16 (Percent Used) t 9.16 8.63
Audio WinBench 99/DirectSound3D CPU Util, 22 kHz, 8 bit, Streaming:Voice 32 (Percent Used) t 5.9 7.32
Audio WinBench 99/DirectSound3D CPU Util, 44.1 kHz, 16 bit, Static:Hardware Voices s 32 1,2 32 1,3
Audio WinBench 99/DirectSound3D CPU Util, 44.1 kHz, 16 bit, Static:Voice 8 (Percent Used) t 3.21 2.8
Audio WinBench 99/DirectSound3D CPU Util, 44.1 kHz, 16 bit, Static:Voice 16 (Percent Used) t 5.17 3.85
Audio WinBench 99/DirectSound3D CPU Util, 44.1 kHz, 16 bit, Static:Voice 32 (Percent Used) t 7.1 5.83
Audio WinBench 99/DirectSound3D CPU Util, 44.1 kHz, 16 bit, Streaming:Hardware Voices s 32 1,2 32 1,3
Audio WinBench 99/DirectSound3D CPU Util, 44.1 kHz, 16 bit, Streaming:Voice 8 (Percent Used) t 3.44 3.36
Audio WinBench 99/DirectSound3D CPU Util, 44.1 kHz, 16 bit, Streaming:Voice 16 (Percent Used) t 5.1 4.49
Audio WinBench 99/DirectSound3D CPU Util, 44.1 kHz, 16 bit, Streaming:Voice 32 (Percent Used) t 12.4 7.03
These were my own informal tests and not necessarily done in the best of conditions for a good isolated result but for what it's worth here they are.