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Question about the "cleanup media" option


WraithTDK

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I have questions about the cleanup media tool. 

1. Is it going entirely by filename, or does it do checksums?

2. When it lists duplicate files, is it listing all instances of a duplicate? For example, let's say I have three copies Duplicate1.jpg. Is it going to show me all three? I ask, because if it does, and I check them all, that would take me down to zero copies of that image, which would be bad, correct?

3. I would assume if there are duplicates, they're all in different folders, and they're all be used for something, right? Is this going to leave me with a bunch of games lacking images?

I'm up to nearly 100GB of media, pruning would be nice, but I've put a lot of work into this and I'm nervous deleting anything.

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Duplicate checks uses hash comparison to determine if it's a duplicate or not. Filename wouldn't work since the OS forces them to be unique anyway. We do also have a tool built into that you can opt into that looks at the image and can detect if they are likely visually the same despite having a different hash (for example if you have a jpg and a png of the same image). We don't list ALL duplicates, just any duplicate after the first file we find. If you have 4 of the same image only 3 will be listed as duplicate, and only if they all were tied to the same game. The tool also takes into account your image type priorities and region logic. If your game is NA and you have NA and Japanese art for a game the Japanese art would never be used by the app and so we mark it as such for deletion. The tool should never clear something that the app would potentially use in any of the automatic lookup stuff. It has no way of knowing if you're running a theme in LB or BB that requires that specific image type or not though.

The tool does allow you to quarantine the files which will move them to a different location. You could use that option, then peruse LB/BB to see if anything appears to be missing, and then delete or restore the files depending on your findings.

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