If you uncheck the box "Resize to Fit" you will get a full resolution file.
JPGs are supposed to be smaller than that original RAW. JPGs are compressed. If you mean the export is 8-9 Megabytes (not MegaPixels), this is probably correct, it is a full resolution file.
It is always easy to miss the obvious !!!!
BTW, Where is the "Resize to Fit"?
I saw it once, now I cannot see it, any button I need to press for it to appear ?
It is in the Export dialog box. Use the menu command File->Export ...
If you really want full resolution, you should export as tifs or psds, not jpgs, as converting a raw file to a jpg downgrades your pixels. A full-size psd or tiff in AdobeRGB or ProPhotoRGB is the nearest you can get to your edited raw file, or you can just export your raw file unedited. All these choices are in the export dialog.
The resolution is the same, JPG, TIF and PSD.
Quality is higher for TIF and PSD, although most people won't notice the difference between those and a JPG.
Resolution and quality are not the same thing.
Unless you know what you're doing -
- Don't use Adobe RGB, and definitely not ProPhoto. Use sRGB.
- Don't export as Originals - if you want other people to be able to view the files - use jpg.
You are referring to just pixel resolution; I was using the word in the wider sense which includes spatial and color resolution.
"The term resolution is often used for a pixel count in digital imaging, even though British, American, Japanese, and international standards specify that it should not be so used, at least in the digital camera field" from Wikipedia
I was assuming that if he was using a D750 and taking raw files, he had some idea of what he was doing. He didn't say why he was exporting to CD/DVD, but I assumed he wanted to keep the full resolution/quality of his images, and converting to sRGB irreversibly throws away some color. That may or may not matter, depending on his reasons. Same with the originals; it all depends on his reasons for exporting to CD. If he wanted to store copies of his original raw files, it is there as a choice in LR.