Transfer photo problem: Lightning to SD Card Camera Reader to iPad

Question

Equipment:
Apple Lightning to SD Card Camera Reader-ZML (from BH Photo dot com)
Version 7.0.2 (11A501)
iPad Wi-Fi Cellular 32GB MD517LL/A
SD card 4GB Kingston SDHC
SD card 32GB Lexar SDHC Class 10
Nikon D5100
Fry's build desktop with Windows 7 Home Edition
Files type:
*.jpg
Desired outcome:
Transfer *.jpg images from desktop to SD card to iPad for use Photos (camera roll)
Successes:
iPad recognizes and displays *.jpg created in-camera.
Problem statement:
File origin: all image files created with camera listed above.
Files created in camera (*.jpg & *.NEF (RAW), then transferred to desktop.  *.NEF files converted to *.jpg.  Reload files to SD card in *.jpg format only, iPad does not see / display images to be imported from SD card to iPad.
Problem resolution attempts:
Format SD card using desktop, result - iPad does not recognize SD card
Format SD card using camera, result - iPad recognizes SD card
Try a different SD card (used two, see equipment above)
Test shot photo (*.jpg) in camera work only (no transfer to desktop), result iPad recognizes and displays image
For *.jpgs on desktop
1st convert file names to same nomenclature (system of names) created by camera (DSC_001.jpg) (DSC underscore 3 digits file extension).
2nd load file into same folder that was created by camera on SD cards, result displayed one desktop originating test photo once only.  Subsequent attempts failed.
No difference in performance between the 2 SD cards.  In camera work displays but not transfer files from desktop to SD card
E-mail photos (15) to personal e-mail, open file with internet, copy to iPad, result iPad copies, loads, and displays images in camera roll.  I used same images I loaded to SD from desktop in attempt to keep everything equal.
Side note: I received a notification (push to my device) to from Apple to update software.  The operating system was updated to what I have now.  I don't recall if the one success I listed above was before or after the OS update.
Discussion
Lighning cable advertised as useful in transfering images (pictures) to iPad.  I read prior to purchase what image files were supported.  I began with high hopes, and now I'm very deflated.
I've hacked and hacked and tried and read and tried and... I can't solve this problem.
A resolution (without additional expenditures) is greatly appreciated.  Thank you in advance to everyone for your consideration and help.
Houston, Texas, United States

Answer 1

There's a step by step in the manual
http://support.apple.com/manuals/
There is no specific naming convention beyond must be in the DCIM folder and  must have 8 character names. myphotos.jpg for example.
I've successfully used SD cards to import videos off my computer onto my iPad, they just have to be named right.
The reason for the work arounds is, in Apple's work flow, you use the camera kit only to interface with your camera, if you want to import from your computer, you use iTunes. So that's the methods they favor. Transferring from your computer to a card to your iPad via the kit is a non-supported work around, which is why you have to basically fool the iPad into thinking those images came directly from the camera.