Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: "Carlos E. R." Newsgroups: alt.os.linux,alt.comp.os.windows-11 Subject: Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Date: Sun, 16 Feb 2025 15:06:03 +0100 Lines: 35 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: individual.net x1BlEq/70O7gOLqSQRDdnQ1M2Rt+4/IRG8zGbGSWKDTjVNgg3M Cancel-Lock: sha1:0vfEUPdPYd2LueZ/AQNMsDfUvjk= sha256:yfhbi9EXWISQcG9sEUfEW9d+KscO8OaAzyQ2cB3/hq8= User-Agent: Mozilla Thunderbird Content-Language: en-CA, es-ANY In-Reply-To: Xref: csiph.com alt.os.linux:80983 alt.comp.os.windows-11:17105 On 2025-02-16 14:39, Daniel70 wrote: > I've got a PVR who's HD is getting pretty full (90%+) with programs I'll > want to watch some day ... so I was thinking about coping some of the > 'Keeper' programs onto DVD which meant buying a spool of DVD's.... but > then needed to check if I needed DVD-R or DVD+R disks. (It is DVD-R) > > Which got me thinking ...... What's the difference between DVD-R and > DVD+R?? > > (Note ... I'm not discussing R v RW, just the -/+.) > > Back in the day (70's/80's), I used to do some Digital work where 'they' > talked about Positive Logic (Ones = +5V, Zeros = Zero volts) and > Negative Logic (Ones = Zero Volts and Zeros = +5V or even Ones = -5V and > Zeros = Zero Volts), so I can understand/accept that there are > differences ..... but with DVDs?? > > On a +R DVD, are the 'Ones' high points on the disk whilst on a -R DVD > are the 'ones' the low points on the disk?? (Or, rather than 'highs' and > 'lows', is it a case of the orientations of the 'North Poles' and 'South > Poles' of the Domains??) I don't remember, but I investigated the issue at the time, and the boxes I have are +R There was a site that discussed the pros and cons of archival quality DVDs [...] found them. -- Cheers, Carlos E.R.