Actually it was DFMI who got the code from MediaBin in 2003 I think. In 2000 DFMI paid Iterated/MediaBin to enhance the codec and both sides had engineers working on it. MediaBin kept a backup copy of the latest version of the VDK 2 with enhancements that their engineer had worked on with DFMI, Simpson had the DFMI copy of what should have been the same thing but who knows if both backups were exactly at the same version date. But both were enhanced VDK 2.0 which shared exactly zero code with the earlier VDK 1.0 for CDs.
Simpson was ordered by the court in 2003 to turn over all copies of any version of the VDK 2 code but instead just turned over the original versions as received from Iterated in early 2000 with no enhancements.
After that Simpson sold copies to about a half dozen companies including TMM.
And to answer the other question you seem to be asking, yes PVS/SGI codec is the same as calling it the VDK 2.0 codec, just different names for the same thing. In the mid 1990's it ran on a Silicon Graphics workstation. When DFMI bought it from Iterated in 2000, Iterated adapted it to run on any Windows PC.