UNICODE 5.1 contains encodings for Linear A (Phaistos) as well as the more intelligible and prevalent Linear B.

http://unicode.org/charts/PDF/U101D0.pdf

I've had a nice plaster copy of it for more than 30 years. I'm now of the opinion it's an ancient copy protection key.

Build a better neightborhood in the first place:
http://www.patternlanguage.com/

I play lots of acoustic 78s on my Victrola - I even have some of the new-fangled TWO SIDED ones!
Fans of ancient recorded media can listen to the antique phonograph music program on WFMU, live on Tuesday nights or to the vast number of archived shows.It alternates either with The Edison Museum collection or the Old Codger - in any case, 78s own that slot.

http://wfmu.org/playlists/AP