[Q] Wipe SD card or just delete folders back to stock?

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http://forum.xda-developers.com – Hi everyone, I'm looking to remove some of my old excess folders off my SD Card and I was wondering if anyone knew what the stock folders are I should be keeping or if it's ok to wipe the SD card? Wasn't really sure if it was ok or not to do so and thought I should ask.. Thanks! (HowTos)