CD-ROM Based Formats

The first CD-ROM discs contained Mode 1 sectors designed for general computer storage on CD. Although not specifically designed for multimedia there are a number of important multimedia formats which use mode 1 CD-ROM as the basic method for storing data on CD.

Parameter Value Comments
Data capacity 682 MB 74:30 min:sec
Raw data bit rate 1.41Mb/s all bytes
User data rate 150 kB/s at normal speed
Block (sector) size 2352 bytes  
User data per sector 2048 bytes full error correction  
Sector rate 75 sect/s at normal speed
Sector Modes 1 or 2  
Sector Forms 1 or 2 only with Mode 2