Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uwm.edu!lll-winken!taco!hobbes.catt.ncsu.edu!kdarling From: kdarling@hobbes.catt.ncsu.edu (Kevin Darling) Newsgroups: comp.sys.amiga.misc Subject: Re: CDTV News Message-ID: <1991Jun18.195643.949@ncsu.edu> Date: 18 Jun 91 19:56:43 GMT References: <30115@know.pws.bull.com> <1991Jun17.192156.6338@ncsu.edu> <1991Jun18.132410.29459@news.iastate.edu> <1991Jun18.191519.26912@mintaka.lcs.mit.edu> Sender: news@ncsu.edu (USENET News System) Organization: North Carolina State University Lines: 33 rjc@wookumz.gnu.ai.mit.edu (Ray Cromwell) writes: >> taab5@isuvax.iastate.edu writes: >> I agree that Commodore should make the device standard. By making >> it optional, Commodore is guaranteeing that there will never be any CDTV >> titles available to support it. Since all CD-I titles will support >> 15/24-bit video, making the card standard would narrow the color >> capability differences between the CD-I and CDTV. > > There is ample space on a CD to store both DCTV and Amiga frames. Hmm. Depends on the app and whether or not it can afford to use up the CDROM for all that double storage, of course. Technical correction to Marc: true 15-bit yes; true 24-bit no, altho DYUV does give "24-bit" in much the same way that HAM gives "11-bit" or DCTV gives "22-bit". DCTV has some problems I'll go into later, but let's lay all that aside for a while... Because something has come up which eclipses the tech specs. Everyone knows that I'm an advocate of CBM working harder on CDROM apps for the Amiga itself. CDTV apps can rely only on joystick input, so they're not quite what I'm looking forward to on my Amiga. But they're a start. Yet on CIS comes a report that CDTV developer docs discuss several ways to "prevent piracy" of CDTV discs. They give methods of preventing CDTV titles from running on an Amiga... such as looking for the CDTV parameter RAM, placing CD-audio on the first track, and so on. Hmm. For "quickie" Amiga ports which make little use of the CDROM, I can conceivably see a good reason for protection. But for others? Can any developers or CBM types comment on this report or the need? Wondering - kevin