Originally Posted by Stephen Warren
Sorry, yes, this isn't fixed for G98. A bug has been filed, but there's no status update yet.
FYI, the analysis was that the bitstream itself is bad (it has too many macroblocks in some pictures). Some HW (and evidently ffmpeg SW decode) handles this better than others. For G96, there was also a separate driver bug that was fixed.
My GPU is reported as NVIDIA GPU GeForce 8400 GS (G86); anyway, the jerkiness went away with latest driver.