This conversation has been merged. Please reference the main conversation: Lightroom: Capability to display embedded preview or sidecar Jpeg
1. If this box is checked then I have twice the photos in my catalog
2. If the box is unchecked then I do not have access to the JPEG
What makes sense is if you check the box to been able to use the X-Y tool to compare the raw vs the JPG and the ability to keep the JPG as the primary, maybe even the option to erase either the raw or the JPG.
If I shoot raw+JPG in my camera I want the ability to keep the JPG if the camera did a decent or good job and only develop the raw image for the more promising or worse images.