I think I may not have articulated this well.
I already have the footage in 1 big 5+GB file on my HD, and I need to split it up into 2 parts to save it into the space of a 4.3GB DVD. I want to keep the footage as is and not re-capture in smaller chunks, so that I can reconstruct the original later on if need be.
When I split the file in FCP, using the razorblade, then creating 2 sequences, each sequence comes out way smaller than I would have expected. That’s the problem I’m trying to figure out. Why would a straight, uncompressed FCP movie file from NTSC miniDV footage come out about 4x smaller, when I am simply trying to make an exact copy of it, split in two, without any added compression whatsoever? Am I missing something?