This is somewhat related so I thought i'd ask here. I have some violin concerto's on laserdisc that were assumedly filmed in 25i because they are mostly all German. They have however been converted to 29.97i for the laserdisc release. I don't see any blending just interlacing.
My question is how could I get back to 25i? Basically, can I do this:
25i --> 29.97i --> 25i ?