Preparing audio for vinyl is not as complex as it seems. It is all about logic : we have to put sound information on a physical support, which will be read by a turntable needle. Everything of your music will be "coded" in two grooves: one for side A, and one for side B. This code is an analogical one, and it is not unlimited like in digital domain. The first limit is the time we can put on a disc.
FIRST STEP : THE TIME
As a 12, 10 or 7" disc has it's beginning, middle & end, these different formats