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- Newsgroups: sci.electronics
- Path: sparky!uunet!sun-barr!cs.utexas.edu!torn!utzoo!henry
- From: henry@zoo.toronto.edu (Henry Spencer)
- Subject: Re: CD vs. CD-ROM
- Message-ID: <BvxGJn.CuC@zoo.toronto.edu>
- Date: Sat, 10 Oct 1992 22:45:22 GMT
- References: <1b3025INN7je@usenet.INS.CWRU.Edu>
- Organization: U of Toronto Zoology
- Lines: 20
-
- In article <1b3025INN7je@usenet.INS.CWRU.Edu> an938@cleveland.Freenet.Edu (George II Lenzer) writes:
- > What are the differences between a CD player and a CD-ROM
- >device? Putting the SCSI interface and controller mechanisms
- >aside, is the reading done in a similar fashion?
-
- Pretty much. Some of the CDROM readers can be used as CD players.
-
- >BIG DUMB QUESTION: How much work would be involved in trying to
- >"convert" a CD player to a CD-ROM? ...
-
- I can't answer authoritatively, but my gut reaction is "a lot". For
- one thing, you'd need to get at the raw bit stream, which may not be
- readily accessible. (CD players are built in huge volume, more than
- enough to justify a lot of custom chips.) For another, you'd have to
- implement most of the error-correction stuff yourself, because CDROMs
- have much more elaborate error detect/correct than CDs do. (One wrong
- bit on a CD is not going to spoil the music.)
- --
- MS-DOS is the OS/360 of the 1980s. | Henry Spencer @ U of Toronto Zoology
- -Hal W. Hardenbergh (1985)| henry@zoo.toronto.edu utzoo!henry
-