nice filter !
"VirtualDub v.1.66 crashes when using MT version 0.25. It exits with no error messages."
=> if you use a filter with mt that requires mod16 make sure your input is mod32, so that if mt splits the frame it's still mod16. (for more than 2 threads one probably has to go to mod64 and so on)
At least for me that stopped VD from closing.
=> correction, this prevented normal VD from closing directly though it closes after some frames
over here it seems like 0.1 is more stable than 0.25.
(seems to work with VD 1.66, though it crashes with VDMod1.5.10 after some frames)
0.1 + mt("undot()") works under VD1.6.6
0.25 + mt("undot()") didn't work under VD1.6.6 / VDM
0.1 + mt("mergechroma(blur(1.3))") didn't work under VD1.6.6 / VDM
Cu Selur