Hi - I just tried DNG Converter 9.12.1 on Win 8.1 and Win 10 and neither (2 different computers) can see the RAW files. I've tried it will uncompressed RAW L and lossless compressed RAW L files, both when the files are on the hard drive and when they're on the XQD card reader via USB. I've attached screenshots of what it looks like. Help please? Thanks.
The DNG Converter converts an entire FOLDER of raws so the "no items match" is normal because there are no subfolder items. Just make sure the folder with the NEFs is listed across the top and in the selected folder area at the bottom. If need be single-click on the folder name at the top so it shows up at the bottom:
And once I clicked the Convert button I got my DNG:
Thanks! I'm face-palming myself over here...