Yes I used the bat file. I only unpacked the game to see if there were any system settings that were editable. I unpacked the game with hactool and then used pc-dd.bat. Maybe your game didn't unpack correctly.
I don't understand. I was able to unpack the game just fine and did not get any "nulls" as you have said. I was then able to unpack any arc I wanted and could see the contents just fine as well. Sounds like you did something wrong.
There's the arc tool on nexus mods that will extract them but they end of with a file extension with numbers and letters. There's a bat file somewhere that will let you drag an arc file onto it and it will unpack it and rename the file extension to something editable. I don't remember where the...
You didn't say it was an xci.
hactool -k keys.txt -t xci --outdir=dir game.xci
hactool -k keys.txt -t xci --romfsdir=romfs bignca.nca
I don't use xci so your mileage may vary. For nsp you can use lockpick to dump titlekeys. If DD was the last game you installed then it should be the first...