Optar

Optar is an impressive codec that is designed to encode data using paper. The name is an acronym for Optical Archiver, and it allows you to fit up to 200kB of data on an A4 page. Once your file is encoded, all you need is a laser printer to print it out. Then, when you're ready to read the recording, simply scan it using a scanner and feed it into the decoder program.

One of the standout features of Optar is its practical level of reliability, which is ensured by the inclusion of forward error correction code (FEC). This technology helps to prevent errors and ensures that your data can be read without any issues.

If you need to store files that are larger than 200kB, Optar is designed to facilitate automated processing of page batches. This means that you can easily generate multiple pages of data that can be scanned and processed quickly and efficiently.

In summary, Optar is an excellent option for anyone who needs to store and share data using paper. With its advanced encoding technology, reliable error-correction, and ability to process page batches automatically, it's a must-have tool for any tech-savvy professional.