unknown channel (question marks)

I just got a used wii off Ebay. It has no signs of any homebrew on it. It does have a couple of downloaded games.

Installing homebrew channel/browser was no problem. It had an older boot1 and boot2, and got bootmii/boot2.

When I go to Data Management -> Channels, I see a channel marked by a question mark, size 10 blocks.

I have no idea what it is, nor how to tell what it is. Any ideas?

Open Anytitledeleter and try to see what the title ID of the channel is

If its on the SD card, it is Bannerbomb. If its on the Wii's internal memory, dunno what it is.