We have updated the Podlove Simple Chapters specification (bumped to version 1.2) updating the syntax for time markers to follow the Normal Play Time (NPT) spec as it is defined by Real Time Streaming Protocol (RTSP) specification (RFC2326).

This does not change much for existing PSC files or implementations as the former specification defined a subset of NPT and is therefore 100% backwards compatible. However, if you are implmenting a PSC parser you should probably make sure time markers can be specified using NPT notation and to accept version "1.2" in PSC files.

We have also converted the specifications to MultiMarkdown format and put it up on Github so you can easily set up pull requests to fix bugs, make the specification clearer or to enhance it in any other way.