Sorry, hope this makes more sense .......

Unedited source DV-AVI file

Type = DV Type 1 AVI
OpenDML (AVI v2.0)

Pics/s = 25.000

Frames/s = 25.000

Fields/s = 50.000

Boxes lit up underneath = "I/L", "BFF", "PAL"

Edited DV-AVI file

Type = DV Type 2 AVI
OpenDML (AVI v2.0)

Pics/s = 25.000

Frames/s = 25.000

Fields/s = 50.000

Boxes lit up underneath = "I/L", "BFF", "PAL"

I'm seeing just the one difference ...... the edited AVI is a Type 2 and the original a Type 1.

Is that the problem ?

PS: weird thing is that I'm definitely flagging the edits as Type 1 when saving ..... I've just checked.