This is the first Wii-mode disc dumper (source included) that dumps to the Wii's front-SD. A SD gecko is not required at all.
First install the ios5.wad using WAD manager.
WARNING: Installing WAD files is dangerous and might permanently brick your Wii. Only do this if you know what you are doing. I take no responsibility if you brick your Wii.
Then simply run the wiidumpsd.dol file and start dumping to SD.
Dump however many parts is required for the Disc type present in drive. There are not very many DL Wii game discs out there.
> copy /b 0.bin + 1.bin + 2.bin wii.iso
A Button - Starts Dumping with specified disc type/part size/part number parameters. B Button - Sets Disc type. (Wii SL DVD, Wii DL DVD, Gamecube DVD) 1 Button - Sets Part number. (3 parts for Wii SL DVD, 6 parts for Wii DL DVD, 1 part for Gamecube DVD) (Assumes 1500 MiB part size. Double for 750, and Quadruple for 375.) 2 Button - Sets Part size. (1500 MiB, 750MiB, 375MiB). + Button - If holding, A button benchmarks DVD drive according to the parameters. - Button - If holding, A button benchmarks SD card by Writing a 10 MiB file to it. Currently, you need to time these benchmarks yourself.