A friend of mine is a TV/Movie producer, and when he was working on a project for the History Channel we had some interesting conversations about the archival of audio recordings. First, there's a number of folks that are primarily interested in preserving the "object", the disc or cylinder or tape reel that was used to make the recording. Playing these "objects", even to hear them and re-record them and thus preserve & share the performance that was recorded, degrades them to some degree (sometimes to the point of destroying them) and should therefore be avoided or not allowed. Others feel that the audio recording is what should be preserved, and being able to share it and archive it is worth the potential degradation. From there, the arguments lead to archival format (digital/analog, bitrate, file format, etc.) in regards to expense, format & playback machinery longevity & popularity, archival storage expense and longevity, blah blah blah. Then you get into debates on noise redution, eq'ing, hiss & pop removal, bridging blanks (some of these records look like jigsaw puzzles with pieces missing) and so on.
In the record album realm, we talked about these laser players, and another conceivably more expensive but non-destructive recording method- topographical photography. There's got to be a way to "record" the topography of the disc & interpret that, no? Seemed possible to me, but a huge allocation of resources at this point.
Fun stuff, some cool conversations. The show ended up interesting enough, but not nearly long enough to delve into much of it:
http://tinyurl.com/a5nay
je