adflib
Not a bug, but an interesting video about mfm encoding
You are gathering very useful links (documenting Amiga-time tech, like in #82). I occasionally do that, too (I collect links to useful ADF-related things, so far I put them to README, maily).
Do you think we should put these links somewhere? Personally, eg. this one, I'd add to your ADF FAQ (there is a section about data encoding, so this is nice add-on). For README, this might be a bit too technical.
Btw. recently I have updated the ADF FAQ in the repository (doc/) taking the latest version from your site and made it available also on https://adflib.github.io/ (stub for a ADFlib's page). So, if you update it on your website, let me know (or, if you prefer, you can update directly https://github.com/adflib/adflib.github.io).
