CCE settings. Same in as output

[Lyrisk]

Settings in CCE to get exact output as input
Resolution: 720*480
Aspect ratio: 4:3 Generic
Framerate: 29.97
Nom. bitrate: 9800000 Bit/Sec
VBV buffer size: 112
Constrained param. flag: No
Chroma format: 4:2:0
DCT precision: 10
Pic. structure: Frame
Field topfirst: Yes
DCT type: Field
Quantscale: Linear
Scan type: ZigZag
Frame type: Progressive

Dvd2Avi reported it to be 91% Film and Framerate 29.97
When i made the avi project i coosed "Filed operation: None"
Checked in CCE: Progressive ,ZigZag , Linear Quantscale
The output became:

Pic. structure: Frame
Field topfirst: Yes
DCT type: Frame
Quantscale: Linear
Scan type: ZigZag
Frame type: Progressive

For some reason the output "DCT type: Frame". Does this matter?
Or should i choose other settings in CCE and DVD2Avi?