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ARSCLIST  December 2010

ARSCLIST December 2010

Subject:

Re: Suggestions Toward Nomenclature of Digital Media Files

From:

"Sewald, Ronda" <[log in to unmask]>

Reply-To:

Association for Recorded Sound Discussion List <[log in to unmask]>

Date:

Thu, 30 Dec 2010 15:47:22 +0000

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (35 lines)

I'd also be interested in learning more about how other people are handling this problem, particularly for born digital files they're receiving from outside parties. 

I've encountered file naming systems where people have attempted to reflect the presence of signal processing or other types of editing in the file name, but you just can't capture enough info. there to clearly differentiate between multiple derivatives, particularly if the differences are subtle. Perhaps embedding a version number in the file names of the derivatives would work better? Then you could reference the file name in an associated system and provide all of the specifics there. It wouldn't be as quick as eyeballing a series of file names, but if the names aren't detailed enough to give you the information you need anyway, it may be preferable.

I'm also curious as to how people are handling born digital files they've received in less than ideal formats. For instance, I recently participated in a pilot project that generated AAC files (lossy, compressed, limited compatibility with existing audio software, etc.). I'll keep the original file, but it seems like a good idea to create a more preservationally sound "derivative." This raises all sorts of questions like: 

1) Should the original file name be retained or updated to play better with the file naming conventions used for our other files? 
2) Should we tinker at all with the embedded metadata for the original file, particularly if it contains non-standard elements that would make it difficult to access the audio content later on?
3) How should bit-depths and sample rates be handled during the conversion, particularly for formats that measure resolution in kbps? 
4) What do we call the converted files? Can we consider them to be preservation masters or are they just derivatives? If the original is already in a preservationally sound format, do we need to create a preservation master then just to avoid confusion?

We're also receiving born digital video files and question #1 alone gives me a headache when I think about wrapped proprietary file formats like AVC.

Best,
Ronda L. Sewald


________________________________________
From: Association for Recorded Sound Discussion List [[log in to unmask]] on behalf of David Lewis [[log in to unmask]]
Sent: Wednesday, December 29, 2010 11:56 PM
To: [log in to unmask]
Subject: [ARSCLIST] Suggestions Toward Nomenclature of Digital Media Files

Arsclisters,

Does anyone have thoughts about reasonably simple numeration of files that
distinguishes file types? I have developed a system of my own for tapes,
tape tracks, other analog media. Digital files are different; you can
produce many files for a single track or a group of tracks that differ
only slightly. Suggestions for prefixes, systems already in place, whatever
-- I'm open.

Thank you in advance,

Uncle Dave Lewis

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