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In my previous post, I described id's WAD format used by classic games such as DOOM and how to read them. While researching the format though, I wasn't 100% sure that I was extracting lumps properly - the only readable file I'd discovered was DMXGUS in DOOM1.WAD, and also LICENSE in DARKWAR.WAD... hardly conclusive.

Armed with the specification from the DOOM FAQ I decided to take a brief segue into decoding the pictures to verify the lumps I was extracting were valid.

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