Lossless splitting of large files - FCP? Mpeg StreamClip?

[John BKNY]

I'm capturing SD tapes into DV files - editing in FCP; archiving raw footage to DVDs. But some of the files are too big for a DVD.

Will it work to break up the big files into FCP subclips?
OR - split the big files with Mpeg StreamClip by selecting a section with in and out points and then exporting it?

I'm assuming I should export to DV, not Quicktime or Mpeg.
When I do export to DV, the resulting file is a little smaller than the original - for example, an original 5 second clip that's 19.1 MB becomes 18 MB when it's exported to DV. Does this mean the new clip is slightly more compressed?

Any suggestions on a better way to do this?
Log and capture in sections may be the way.....

Thank you in advance!

[smrpix]

It's probably easier to make frame-accurate cuts in FCP. As long as you maintain the same settings as your original footage (raster size, frame rate and interlace order) You can export the subclips as DV .mov files with no loss of quality.

Log and capture in sections is perfectly fine.