Is it possible to ignore and not import JPG files when a JPG and raw file of the same name exist?

Question

Is it possible to ignore JPG files on import? I shoot raw + JPG and see no reason to keep the JPGs; I shoot JPG primarily as a backup (I back all the JPGs up online to my smugmug account then delete them before importing the raw files), but they're also occasionally handy if one wants to get a quick print in the field. I know that one can set a preference to "Treat JPEG Files Next to Raw Files As Separate Photos", but even then they still are imported.
As an example, say I have this scenario (not on DSLRS, but on pNs cameras, sometimes a JPG but not raw is captured - I suspect this has to do with how the buffer is filling) with these files on a memory card:
IMG_0001.JPG
IMG_0001.CR2
IMG_0002.JPG
IMG_0003.JPG
IMG_0003.CR2
When I import pictures from this folder, I'd like 2 CR2 files and 1 JPG to be imported. I'm even willing to copy the relevant files and drag and drop them onto LR's Library module. But even if I do that, all five files get imported. Thanks!
                     Dilip

Answer 1

jim01403 wrote:
trshaner wrote:
For this typical example 98% of the image files are transferred while LR is building previews, which is exactly what I was suggesting be avoided.
No, I don't believe that's correct. As I said in my previous post, Lightroom's Import is a two-stage process.....first copy the files from the card, then when that is finished, render whatever previews have been requested.
AFAIK there is nothing unusual about my system, Lightroom has always imported in this two-stage way as far back as I can remember. Based on this I see no 'safety' benefit from copying files first outside Lightroom, then using an ADD import process. On the contrary, as this takes away the possibility of using the "Second Copy on Import" option, as well as having to manually setup import folders, I see nothing but downside from that approach.
Mea culpa, Jim is correct! I checked my Windows 7 system with LR4.2 and I monitored the 'Destination folder' during an import direct from memory card to hard drive. 'Copy and import' showed in the progress bar until all image files were visible using Windows Explorer in the 'Destination folder.' Only after all files had transferred did the progress bar change to ‘Render 1:1 Previews.’ I started using LR1.0 on a Pentium 3 single-core system with Windows XP 32 bit, which I think is when I made this observation. Regardless, it is clear that LR4.2 is using a two-step import process. Thanks Jim for being persistent!
It still begs the question why some people are experiencing very slow imports, damaged image files, and other related import problems from memory cards? My guess (and it's only a guess) is that they have 1) 'Rename Files,' 2) 'Automatically write changes into XMP,' or 3) 'Include Develop settings in metadata inside JPEG, TIFF and PSD files' checked in LR preferences. It would be a good idea for anyone experiencing import issues to try an import with these three (3) options unselected.
My apologies to the OP DBarman for going off topic. Hopefully the extra information and observations are helpful.