I've been messing around with the Mike Crash deinterlacer lately with Vegas 6. What I've noticed is that it does look noticably better than the native Vegas blend fields and interpolate deinterlaces, but you have to go out of your way to make it work.
If I just insert the (Mike Crash) smooth deinterlacer as an effect on a track, it doesn't deinterlace. What I have to do is go to the project properties, change the frame type from "lower field" to "progressive", then set the deinterlace method to "none". Now the smooth deinterlacer will work as it should, that is as long as I don't try to scale the video in any way. If I zoom in a little on the footage or change the aspect ratio to 16:9, the interlace lines get resized and the picture falls apart. If I'm resizing at all I need to render a temporary track and then deinterlace that in a separate pass.
None the less, the smooth deinterlacer looks quite a lot better and is worth the hassle.
If I just insert the (Mike Crash) smooth deinterlacer as an effect on a track, it doesn't deinterlace. What I have to do is go to the project properties, change the frame type from "lower field" to "progressive", then set the deinterlace method to "none". Now the smooth deinterlacer will work as it should, that is as long as I don't try to scale the video in any way. If I zoom in a little on the footage or change the aspect ratio to 16:9, the interlace lines get resized and the picture falls apart. If I'm resizing at all I need to render a temporary track and then deinterlace that in a separate pass.
None the less, the smooth deinterlacer looks quite a lot better and is worth the hassle.