New submitter Kormoran writes: After many, many years of internet, I have accumulated terabyte HDDs full of software, photos, videos, eBooks, articles, PDFs, music, etc. that I'd like to save forever. The problem is, my HDDs are fine, but some files are corrupting. Some videos show missing keyframes and some photos are ill-colored. RAID systems can protect online data (to a degree), but what about offline storage? Is there a software solution, like a file system or a file format, specifically tailored to avoid this kind of bit rot?