Can I 1:1 copy a Blu-ray movie?

Of course you can. Please do as the following steps:
1. Run Blu-ray to DVD Pro.
2. Select "Copy the Blu-ray movie to multi-AVCHD".
3. Click on "1:1 Copy".
Since there isn't any compression under 1:1 copy mode, six blank DVD-9s or twelve DVD-5s are needed to complete the copy.