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- Newsgroups: rec.audio
- Path: sparky!uunet!walter!porthos!dancer!whs70
- From: whs70@dancer.cc.bellcore.com (sohl,william h)
- Subject: DAT and SCMS, some info
- Organization: Bellcore, Livingston, NJ
- Date: Mon, 16 Nov 92 16:48:47 GMT
- Message-ID: <1992Nov16.164847.24403@porthos.cc.bellcore.com>
- Keywords: DAT, SCMS, copying
- Sender: netnews@porthos.cc.bellcore.com (USENET System Software)
- Lines: 93
-
-
- A recent poster asked for some SCMS information. Here's a file
- I've had for some time which is still pretty accurate I belive.
-
-
- The following was published in a past issue
- of UPDATE, the newsletter of the Home Recording Rights
- Coalition, Volume 5 No. 2 and is posted with HRRC's permission.
- HRRC encourages the further dissemination of this information.
-
- The Serial Copy Management System (SCMS)
-
- SCMS is a system, for the first time, that will allow Digital
- Audio Tape recorders (DATs) to make direct digital-to-digital
- copies of compact discs. It does not allow digital-to-digital
- copies of these copies to be made.
-
- A DAT with SCMS circuitry is programmed to read certain subcode
- channels of digital source material (eg. CDs). These subcode
- channels are separate from the music channels and include: a
- "catagory code" indicating what type of digital device is being
- used, a "flag" indicating whether or not copyright is asserted,
- and an "L" bit indicating whether the material is from an album
- (eg. original CD) or a copy of an album. DAT recorders with SCMS
- use the combination of this information to determine if
- digital-to-digital copying is permitted. If copying is allowed,
- the DAT recorder inserts new codes onto the DAT tape being
- recorded to indicate if future copies are permitted.
-
- Essentially, SCMS guarantees that direct digital-to-digital
- tapes of CDs, prerecorded digital tapes and future digital
- radio broadcasts will be made on consumer DAT recorders. The
- only restriction introduced by SCMS is on digital copies of
- digital copies, and then only if the maker of the original
- digital source asserts the copy protection.
-
- Congressional Report Vindicates Home Taping
-
- In an October 30, 1989 report, "Copyright & Home Copying:
- Technology Challenges the Law," Congress's Office of Technology
- Assessment (OTA) concludes: "although home taping may reduce
- recording industry's revenue, a ban on home audio taping would be
- even more harmful to consumers, and would result in an outright
- loss of benefits to society, at least in the short term, in the
- billions of dollars."
-
- The OTA study was done at the request of Congress in response to
- the debate about home music taping. The key part of the report
- presents the results of a national survey designed to gather
- objective data about actual consumer use of home recording equipment.
-
- Some of the OTA principal findings included:
-
- 1. "Place Shifting" is the most common reason for album taping;
- home tapers usually tape their own records or CDs so that they
- can play them in their cars, Walkmans, or cassette players.
-
- 2. Nearly 3 out of 4 home taping occasions do NOT involve
- pre-recorded music or copyrighted material.
-
- 3. Home tapers listen to more music and PURCHASE more
- prerecorded music than nontapers.
-
- 4. Home taping stimulates album purchases. A substantial number
- of music buyers first hear the recording or artist they
- eventually purchase on a homemade tape, and many buy recordings with
- the expectation of taping from them.
-
- 5. The availability of dual cassette and high-speed dubbing
- technology does not generate increased home taping.
-
- 6. Overwhelmingly, consumers would strongly oppose legislation
- that would impose royalty taxes (on blank tape or recording
- equipment) or that would prevent home taping.
-
- (1992 update - we all know how much congress considered the
- concerns and/or opinion of consumers.
-
- In developing the survey, OTA gave industry and consumer groups of
- all viewpoints, including HRRC, extensive opportunity for comment
- and advice. Earlier surveys by HRRC and the music industry had
- reached some conflicting results. HRRC strongly applauded the OTA
- findings as confirming everything HRRC had been saying since 1981!
- In short, home tapers act responsibly and are the music industry's
- best customers.
- --------------------
- Anyone interested in contacting the Home Recording Rights
- Coalition (HRRC) can do so as follows:
-
- Telephone: 1-800-282-TAPE
-
- Address: HRRC, 1145 19th Street NW, PO Box 33576, Wash DC 20033
-
-