I have an Apple ProRes 4444 file coming straight from an Arri Alexa which is 235MB with a Data Rate of about 409 mbits/s.
If I import that file into FCP 7, drop it into a sequence that matches the source settings, and simply re-export it (as Quicktime Movie, NOT using Quicktime Conversion), using same as source settings, the exported file is now 176MB with a Data Rate of about 306 mbits/s! (25% smaller and lower)
Why is FCP compressing so much when I choose to export with exactly the same settings as the source?
Shouldn't the exported file have the same size and same Data Rate as the original file?