Xref: utzoo comp.ivideodisc:307 comp.graphics:10147 rec.audio:19584 Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!texbell!wuarchive!usc!apple!apple.com!poggio From: poggio@apple.com (Andy Poggio) Newsgroups: comp.ivideodisc,comp.graphics,rec.audio Subject: Re: Comparison of CD-ROM and "music" CD formats; Where can I find it? Message-ID: <6940@internal.Apple.COM> Date: 27 Feb 90 20:07:52 GMT Sender: usenet@Apple.COM Distribution: usa Organization: Apple Computer, Inc. Lines: 21 References:<386@fltk.UUCP>, <1990Feb26.162452.5185@eagle.lerc.nasa.gov> It is true that most recent CD-ROM drives (Apple's, Sun's, and many others) can both read CD-ROM discs and play CD audio discs. Apple's drive can also use "mixed mode" discs, reading the CD-ROM track and playing the CD audio tracks (but not at the same time). If you are an official Apple developer*, you will have received such a disc. The original poster, though, wanted to read CD audio data and instead of playing it, transfer the digitized audio over the computer interface (SCSI in Apple's drive) into his Mac or whatever. Of the drives I know (20 or so including Apple's and Sun's), none will do this. It is not technically impossible, of course. But no manufacturer seems to provide it for now. Some time ago, I posted a 5 part technical summary of CD audio, CD-ROM, formats, and how it all works. If there is interest, I can do so again -- I would prefer posting to individual requests. Thanks. --andy (poggio@apple.com) * I know this question will come up so I'll answer it here: if you want to become an official Apple developer, call (408) 996-1010 and ask for Developer Services.