<div dir="ltr">Hi Hugh.<br><br>You appear to be thinking of Laser Discs, which did indeed come in both forms. Please note that I'm talking about a Video Disc Player, which uses a form of modified vinyl disc. It appears to be entirely CAV, so it shouldn't be an issue. Might be worth looking at the Wikipedia article I referenced.<br>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On 27 November 2013 18:00, Hugh Gamble <span dir="ltr"><<a href="mailto:hugh@phaedrav.com" target="_blank">hugh-+oaQStku59NWk0Htik3J/w@public.gmane.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div link="blue" vlink="purple" lang="EN-CA"><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">NTSC North American disks come either way, like Beta vs VHS.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">It’s 50/50 which you’ve got.<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I don’t know any player that does both (you need 2 players).<u></u><u></u></span></p><p class="MsoNormal">
<span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><div style="border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt"><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"" lang="EN-US">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"" lang="EN-US"> Giles Orr [mailto:<a href="mailto:gilesorr-Re5JQEeQqe8@public.gmane.orgm" target="_blank">gilesorr-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org</a>] <br>
<b>Sent:</b> November-27-13 5:52 PM<br><b>To:</b> Hugh Gamble<br><b>Cc:</b> tlug; UU<br><b>Subject:</b> Re: [u-u] OT: Video Disc Player and discs<u></u><u></u></span></p></div></div><div><div class="h5"><p class="MsoNormal">
<u></u> <u></u></p><div><p class="MsoNormal">I'm assuming you're asking "constant angular velocity" or "constant linear velocity." Given that the Wikipedia article mentions "450 rpm for NTSC" and they're based on vinyl records which also had fixed RPM, I'd guess "CAV."<u></u><u></u></p>
</div><div><p class="MsoNormal" style="margin-bottom:12.0pt"><u></u> <u></u></p><div><p class="MsoNormal">On 27 November 2013 17:38, Hugh Gamble <<a href="mailto:hugh-+oaQStku59NWk0Htik3J/w@public.gmane.org" target="_blank">hugh@phaedrav.com</a>> wrote:<u></u><u></u></p>
<div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">CAV or CLV?</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p>
<div style="border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt"><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm 0cm 0cm"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"" lang="EN-US">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"" lang="EN-US"> <a href="mailto:u-u-bounces@unixunanimous.org" target="_blank">u-u-bounces-nUbHFpetmNumKAeH2fHhIti2O/JbrIOy@public.gmane.org</a> [mailto:<a href="mailto:u-u-bounces-nUbHFpetmNumKAeH2fHhIti2O/JbrIOy@public.gmane.org" target="_blank">u-u-bounces-nUbHFpetmNumKAeH2fHhIti2O/JbrIOy@public.gmane.org</a>] <b>On Behalf Of </b>Giles Orr<br>
<b>Sent:</b> November-27-13 5:19 PM<br><b>To:</b> tlug; UU<br><b>Subject:</b> [u-u] OT: Video Disc Player and discs</span><u></u><u></u></p></div></div><div><div><p class="MsoNormal"> <u></u><u></u></p><div><div><p class="MsoNormal" style="margin-bottom:12.0pt">
Some co-workers of mine found an RCA Video Disc Player (NOT Laser Disc, see <a href="http://en.wikipedia.org/wiki/Capacitance_Electronic_Disc" target="_blank">http://en.wikipedia.org/wiki/Capacitance_Electronic_Disc</a> ) and some discs. It works - we tested it. While I'm fascinated by the technology involved (and so assume some percentage of other geeks will likewise be fascinated), I don't need another piece of outdated technology in my house. If anyone wants it, it comes with copies of "Dragonslayer," "Vertigo" (first disc only!), "WarGames," "2010," and "Close Encounters." Pick up at North York Civic Centre, free. (It's fairly heavy.)<u></u><u></u></p>
</div><p class="MsoNormal">Even if you're not interested, I encourage you to skim the Wikipedia entry: it's interesting to think how different things would be had RCA succeeded in getting this thing to market in the 1960s as they should have done - instead of in 1981 when it had to compete with LaserDisc, VHS, and Betamax.<br clear="all">
<u></u><u></u></p><div><div><p class="MsoNormal"><br>-- <br>Giles<br><a href="http://www.gilesorr.com/" target="_blank">http://www.gilesorr.com/</a><br><a href="mailto:gilesorr-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org" target="_blank">gilesorr@gmail.com</a> <u></u><u></u></p>
</div></div></div></div></div><div class="MsoNormal" style="text-align:center" align="center"><hr style="color:#a0a0a0" align="center" noshade size="1" width="100%"></div><p class="MsoNormal">No virus found in this message.<br>
Checked by AVG - <a href="http://www.avg.com" target="_blank">www.avg.com</a><br>Version: 2014.0.4158 / Virus Database: 3629/6859 - Release Date: 11/22/13<u></u><u></u></p></div></div></div></div><p class="MsoNormal"><br>
<br clear="all"><br>-- <br>Giles<br><a href="http://www.gilesorr.com/" target="_blank">http://www.gilesorr.com/</a><br><a href="mailto:gilesorr@gmail.com" target="_blank">gilesorr-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org</a> <u></u><u></u></p></div></div>
</div><p class="MsoNormal"></p><div><div class="h5">No virus found in this message.<br>Checked by AVG - <a href="http://www.avg.com" target="_blank">www.avg.com</a><br></div></div>Version: 2014.0.4259 / Virus Database: 3629/6872 - Release Date: 11/27/13<u></u><u></u><p>
</p><div class="im"><div class="MsoNormal" style="text-align:center" align="center"><hr style="color:#a0a0a0" align="center" noshade size="1" width="100%"></div><p class="MsoNormal">No virus found in this message.<br>Checked by AVG - <a href="http://www.avg.com" target="_blank">www.avg.com</a><br>
Version: 2014.0.4158 / Virus Database: 3629/6859 - Release Date: 11/22/13<u></u><u></u></p></div></div></div></div></blockquote></div><br><br clear="all"><br>-- <br>Giles<br><a href="http://www.gilesorr.com/">http://www.gilesorr.com/</a><br>
<a href="mailto:gilesorr-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org">gilesorr-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org</a>
</div>