I do not have that connection kit, but this is a direct quote from the Product Overview on Apple's Site:
"Use the SD Card Reader to import photos directly from your camera's SD card. Connect it to your iPad, then insert your digital camera's SD card into the slot.
After you make the connection, your iPad automatically opens the Photos app, which lets you choose which pictures to import, then organizes the selected photos into albums. When you sync iPad to your PC or Mac, the photos on your iPad are added to your computer's photo library."
Based on that, it sounds like the iPad will only recognize image files (jpeg, RAW, etc.). But I guess someone would have to try it out to know for sure.