The open, independent, and international standards organization Internet Engineering Task Force (IETF) has chartered a working group. It is named "Codec Encoding for LossLess Archiving and Realtime transmission" (CELLAR) and aims to develop specifications for a lossless audiovisual file format for use in archival environments and transmission. It consists of the combination of the audiovisual container Matroska, lossless video codec FFV1, and lossless audio codec FLAC. This paper reviews the status of this on-going development and thereby provides an overview of the challenges and intricacies of audiovisual specification development.

The PREMIS 3.0 Ontology Working Group is a community interested in using Semantic Web Technology to leverage systems managing the long-term preservation of digital archives.
The version 3 of the PREMIS Data Dictionary has stimulated the community to revise the current PREMIS OWL Ontology. The revision process aims not only to integrate the conceptual model with the changes defined by the new data model of the PREMIS version 3.0, but also to ease the implementation of Semantic Web Technology in the digital preservation community.