> Then cassettes got replaced with CDs which (initially) were read only, which again saved the market from piracy CD players hit the market in the mid 80s (I g

> Then cassettes got replaced with CDs which (initially) were read only, which again saved the market from piracy CD players hit the market in the mid 80s (I got my first one in 1988). The effect of cassette tapes would have really hit in the late 70s and early 80s as high bias tapes hit the market. In the 90s, CD players became affordable. Also, there was a big price difference between a cassette and a CD. Cassette was about $8 for a new album, CD was $14.