Why is a CD 74 minutes long?
The adoption of EFM in June 1980 allowed 30 percent more playing time that would have resulted in 97 minutes for 120 mm diameter or 74 minutes for a disc as small as 100 millimetres (3.9 in). Instead, the information density was lowered by 30 percent to keep the playing time at 74 minutes. Lees verder »
Why does CD have 74 minutes?
74 minutes of music stored in small 12 cm plastic discs CDs are small, measuring 12 cm in diameter instead of the original 11.5 cm. Legend has it that conductor Herbert von Karajan requested that the CD be able to hold 74 minutes of music - instead of 60 minutes on 11.5cm - in order to hold Beethoven's 9th Symphony. Lees verder »
What does 80 minutes mean on a CD?
The "700 MB / 80 Min" label is describing two very different way of burning a CD. A CD can be burned as a "Data" disc or as an "Audio" disc. 700 MB is for data version. 80 Min is for audio version. When you burn a CD as an Audio CD, it will fit 80 minutes of music. Lees verder »
Why does burning a CD take so long?
Note: Besides the record speed, a few variables can affect the record time positively or negatively: Lead in and Lead out time, also known as writing the Index or Title. Feeding the machine, whether automated or manual. Amount of data or audio written to the CD. Lees verder »
What is the longest a CD can be?
For audio CDs, the maximum length for audio is 79 minutes and 59 seconds. Lees verder »
