12" 45 RPM records: What's the story?


What's the advantage of producing these? If there is one, why aren't they all 45RPM?
pawlowski6132
Rushton...Master tape print through at the start of a selection is easily edited out when the LP is cut, or the CD data file is made. Also, FWIW, print through happens when tapes are tightly wound and stored unplayed for years. Also, newer tape formulations have minimized the problem.
Eldartford, thank you. I was aware of the cause and that newer formulations were more resistant. I'd never understood that print through was easy to edit out.
Rushton...Just to be clear...it's easy to edit out just before the music starts. It can't be removed throughout the music and is a significant problem with very old archived tapes.
Eldartford, I am gathering a number of cds and the tracks showing pre-echo.