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Under review

Some CBR files not working on app or web

cee4our 3 years ago updated by Tom 3 years ago 3

I have some comics in CBR format that I made last year by using WinRAR and then changing the extension and they all work fine but the ones I've made in the past couple days won't work. The only thing I've noticed about them is the CBR's I made last year the text shows up blue and the new ones I make the files are black. No idea why that's the case or why that would matter. Any ideas for why these aren't working?

Answer

+2
Answer
Under review

RAR is a proprietary format for which very few decompression library exist.

The library used by Ubooquity (the only existing in Java) has issues with some RAR file, and can't open RAR 5 files at all.

For comics there is no reason whatsoever to prefer RAR to Zip (cbz) anyway.

+1

I don't have an explanation, but I have had issues with CBR files in the past. They may show up in the library but when I would go to read them they wouldn't load. I ended up converting them to CBZs and they then worked fine. I use a simple batch file that does the conversion for you; the one requirement is it uses 7Zip. It will do whole folders for CBRs which is handy. You can find the code here

I unrar'd the CBR files and then Zipped them with WinRAR and renamed the .zips to .cbz and now they work. So weird. Thanks for the idea.

+2
Answer
Under review

RAR is a proprietary format for which very few decompression library exist.

The library used by Ubooquity (the only existing in Java) has issues with some RAR file, and can't open RAR 5 files at all.

For comics there is no reason whatsoever to prefer RAR to Zip (cbz) anyway.