For archival purposes though, a proprietary codec on a proprietary app in a proprietary OS that could be gone in the next release is not a panacea. This demands

For archival purposes though, a proprietary codec on a proprietary app in a proprietary OS that could be gone in the next release is not a panacea. This demands a format that will be playable at highest quality in 50 or 100 years. Not an easy problem!