A groove of which the unmodulated width at the top is less than 0076 mm and which is intended to be played with a stylus having a tip radius less than 0025 mm.
"Thanks for transferring my wife's treasured childhood 12 sided 78 rpm album to CD and cassette tape. The quality is outstanding. It is better than I remember these old records sounding. I am also pleased with the way the CD is labelled and reproduction of the original album cover art work on the CD box. We had almost given up ever hearing this ..."
