What is the capacity that a CD can hold?
• 74 minutes of audio, or 650MB of data. Newer CDs can hold 80 minutes of audio, or 700MB of data. Back to Top Q. I can read the CD-R disc on my CD-R drive, but when I put it into a CD-ROM drive it won’t play. • The disc has not been “finalized” thus making it unreadable by the CD-ROM reader. Finalization process is the last part of the multi-session process which writes the overall disc table of contents into the disc lead-in area which makes the disc conform to the ISO 9660 standard, or UDF protocol, required by most readers.