True , but GeForce2 series do accelerate Video acceleration for DirectShow, MPEG-1, MPEG-2 and Indeo. TNTs don't. [/QUOTE]
TNTs apparently accelerates MPEG-1 and color space conversion (that's what nVidia refers as DirectShow?). No MPEG-2 or Indeo (I doubt it's even accelerated on a GF2) acceleration though.
* Hardware YUV 4:2:2 and 4:2:0 color space conversion support
* Multi-tap X and Y filtering
* Support planar YUV12 (4:2:0) to/from packed (4:2:2) conversion for software MPEG acceleration
* DVD sub-picture alpha blended compositing
* Video acceleration for DirectShow, MPEG-2 and MPEG-1
For the record, my old CL5446 1Mb card from 96 also accelerates MPEG-1.