Although disc-based storage is not as widely used as it once was for digital evidence archiving, it remains a viable solution when properly implemented and managed. In fact, many of the world’s largest technology companies are using and/or exploring disc-based storage systems for long-term offline storage of petabytes of customer data (e.g. Facebook uses 10,000 Blu-ray discs to store 'cold' data). They do so, however, in a managed environment with a thorough understanding of the medium’s strengths and limitations.

Many in law enforcement use write-once disc-based media for MASTER evidence storage, as it continues to be recommended via various industry best practice documents. Unfortunately, not everyone involved in the evidence chain understands the limitations and best practices as they relate to the care and handling of disc-based media. Adhesive labels, permanent markers, and ballpoint pens have destroyed more evidence than I care to even think about.

Sounds like an oxymoron, doesn't it? Is it a standard or is it a guideline? It's both, and it's courtesy of the ISO/IEC JTC (joint technical committee). I've been told the new document was created from a SWGDE guideline, but since you have to purchase the "standard" I couldn't really even tell you what language it is in, because I'm not paying for any document created in a vacuum.

ISO/IEC 27037 News Release