[LINK] Guidelines for Digital Repositories, Canberra, 27 July

Michael Still mikal at stillhq.com
Fri Jul 21 14:51:46 AEST 2006

Marghanita da Cruz wrote:
> Kim Holburn wrote:
>> On 2006 Jul 21, at 10:11 AM, Gordon Keith wrote:
>>> On Thu, 20 Jul 2006 14:49, Tom Worthington wrote:
>>>> Although there is a lot of discussion and documentation, worldwide,
>>>> on the issues surrounding the sustainability of digital material,
>>> Related to this topic, does anyone know if any guidelines exist in  
>>> terms of
>>> codecs suitable for archival of video data?
>> As I understand it in general, digital archiving usually involves  
>> uncompressed data with all the bits present.  While you might include  
>> compressed versions the base data is uncompressed.
> <snip>
> I'd agree that keeping the uncompressed source material is a good idea
> and this is probably still OK for video. Though some cameras seem to be
> coming out with record to DVD (MPEG2 - royalties via license to
> manufacturers) rather than
> raw DV to tape.

I don't think that helps though, as the video will still be encoded, and 
  that would need to be documented. I would think an open compression 
format like MPEG would be fine, especially if the archive included the 
specification, which could be used to write a decoder if needed.

> Can you take an uncompressed digital photograph?

Yes, it's called RAW.


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