I’ve recently made the switch from using DD-WRT to OpenWRT (https://openwrt.org/) which is essentially what DD-WRT is based on. I now have a much leaner, cleaner and more control over my router.
One thing that has bugged me was that I decided to enable MiniDLNA on the router but was having issues getting it to recognize folders correctly.
The note on the miniDLNA setup screen read:
Set this to the directory you want scanned. If you want to restrict the directory to a specific content type, you can prepend the type (‘A’ for audio, ‘V’ for video, ‘P’ for images), followed by a comma, to the directory (eg. media_dir=A,/mnt/media/Music). Multiple directories can be specified.