USB WBFS loader for GameCube files?

Is there a working USB loader for GameCube files on a WBFS partition? I found a WBFS manager that handles WBFS, Wii ISO, and GC ISO files, and that can transfer them all to a USB WBFS partition (Wii Fusion). I'm running WiiFlow r418, but I don't see the GC files in the WiiFlow list. The WillFlow site says "Wiiflow can play Gamecube games from SD Card with DML since r418", but I don't see any info or docs on this. Does this mean SD and SD only? What about the WBFS partitions it handles?

Currently there is no way to load gc games from a usb drive. DML can load them from sd.

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Originally Posted by cjizzle

Currently there is no way to load gc games from a usb drive. DML can load them from sd.

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Thanks cjizzle. WiiFlow now claims to be able to do that as well. I'll give it a shot.