An outstanding RCA Victor documentary from 1942 on how shellac records were made. Well written narration, excellent visualization. It's a pretty fascinating process, involving cutting an original wax disc, electroplating it into a metal master disc, making a stronger mother disc from the master, and making stamping discs from those. Mixing the shellac, stamping the records, and packing and shipping is also covered. This is one of the more interesting factory tour films out there, and since it covers an outdated technology, it has quite a bit of historical value as well.