I have a 4:3, NTSC, Interlaced video. I used TMPGEnc to handle the NTSC, so now I have 23.970fps, instead of 29.9. I convert the tpr file to a avi (vfapi), then load it up into GK. At the compression test screen, I select 'field deinterlace', and I get a avisynth error that says "FieldDeinterlace: YV12 format only" "LastCompCheck.avs, line 30". This disc is american. This is the first season of seinfeld, season 3 works fine. I am at a loss. I could really really use some help.