Tag Archives: OPDS

Usability

The practical digital library updated

Library bookcaseA few years ago I moved my private library to the cloud. It uses Calibre to catalog my books, and the Open Publication Distribution System (OPDS) to provide an Internet-capable catalog. OPDS is built in to a lot of publisher-independent e-reader software. My e-readers can generally retrieve books from Internet hosts that provide OPDS.

My latest library uses COPS to construct the OPDS catalog from my Calibre database (book list). I update my library by keeping a copy of my Calibre database and directory of book files on a web server.

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Security

Apple Music Deletes Personal Content

apple music[UPDATE: Apple now claims this was a bug; see the updated post]

This is perhaps the worst example of entertainment engineering I’ve ever heard. Blogger and musician jamespinkstone claims that Apple Music deleted countless unusual tracks in his music collection. It “matched” the tracks with entries in its library. Then it deleted the matched ones from his hard drive. When he tried to play a rare piano version of “Sister Jack” he instead heard a common demo version. Apple Music apparently decided the tracks were similar enough to treat as identical.

This is worse than Sony planting malware on PCs to as a sort of copy protection. I’m no musician, but I appreciate the differences in my 3 or 4 versions of early Bonnie Raitt songs.

This is why I don’t trust the big vendors like Apple or Google to host my private ebook library.

Usability

Towards a practical digital library

Library bookcaseI started collecting digital content in the 1980s. Before that I was satisfied to print things out, bind them, and put them on a shelf. My graduate research produced about three linear feet of printed papers sorted by author. I wrote my first book mostly from printed references, though all the writing was online. When I started my second book, Authentication, I decided to collect, catalog, and save my references digitally. I stored everything in a tree of folders, one per author, stored alphabetically.

My library now contains several thousand items, from Gutenberg ebooks to marketing brochures to technical papers. It uses over 8 GB of storage, including catalogs and metadata. I used to read classic fiction on Palm Pilots and early smartphones. Now I read everything from fiction to technical reports on a tablet, either Android or iOS. This environment poses a whole set of challenges. I’ve found some tools to make my library work, more or less: Calibre, OPDS, and DRM-free books.

My main objective is Get it Once, Organize it Once, and Read it Anywhere. 

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