best buy dvd recorder This is a topic that many people are looking for. khurak.net is a channel providing useful information about learning, life, digital marketing and online courses …. it will help you have an overview and solid multi-faceted knowledge . Today, khurak.net would like to introduce to you DVD+R and DVD-R; What was that about?. Following along are instructions in the video below:
“When computers were old and lame and you needed to put your data on some some sort of removable optical disc like a lame and old person. I sure do was a fun process sessions burning. What do you want to do with this disc. Tables of contents sound of disc drive spinning up finalizing disc.
Write. Failed. Oh. The memories and cor cor.
Cor. Corrupted ones. Orrupted ones dial up modem sounds in background nthanks to the internet and cheap. Flash media.
The use of discs in pcs is essentially over. But there was a time when you had oh so many noptions of write once read. Many discs you could buy by the spindle. You ve got your ol reliable compact disc.
Nrecordable. Because really who needs more than 700 megabytes. How could you possibly never fill that and for those weirdos. Who might want to write nthings to a disc and then erase them so you can write more things.
Later you ve ngot your compact disc re writables. But in the late 90s. There was this new nthing comin . Round the mountain the.
Dvd yeah i. Know 47. Gigabytes. It s absurd.
Anyway eventually your precious cd. Burner nyou. Spent all that money on was obsolete. Because.
There s dvd burners now you absolute dweeb get with it but for a short. While choosing a dvd burner nwas. N t that easy because thanks to the fact that format wars. Nare apparently irresistible there were two competing versions of writable dvd.
Because that s what this video is nabout. If you remember seeing dvd r. Next to dvd r. You might have wondered what the heck that was all about was there really a difference between them well to the user not really much at all.
But the two were technically very different and thus incompatible because they were ncreated by two different companies. That s right somehow within the very format nof dvd. There was a format war ugh humans before we get too far. I d like to point nout that a while ago.
I made a video about the objectively way. Cooler dvd. Ram. Which is nsomehow.
Older than both r and r. And way more capable. When it comes to data nstorage. You can find it through that clicky thing nthere.
But possibly thanks to wanting to make dvds. Nwith your computer. That you could watch with a dvd player. The much less cool write.
Once nread. Many formats were soon to follow and dominate. The landscape and their re writable versions of course oh and also lots of people apparently misremember nthe plus vs dash debacle as being a thing with cds..
But that s some mandela effect stuff going non as there was never a cd r just so you know alright quick recap of the history of optical discs. In the beginning. There was laserdisc. Then there was the compact disc.
Then there were also weird one offs. And then there was the dvd the end ok. But really here s the thing you gotta nremember the leap from laserdisc to cd was significant nbecause it made the optical disc digital for the first time most formats after that though were simply revisions or improvements to the same fundamental technology. Maybe we ll change the color of the laser.
Maybe we ll use dyes instead of pits. And maybe we ll harness the npower of the third dimension and stick a second translucent data layer below the reflective one but in every single optical disc format it s na shiny disc read by a laser and decoded digitally based upon how that laser gets reflected back all blinky blinky. So given that each new format was just building non. The last one how do you create a new format.
Why with intellectual property and in the land of intellectual property nhow are you gonna differentiate yourself why with meticulously documented format specifications and licensing of course we re not gonna let you stick our precious nlittle logo on there unless you follow. These instructions and pay us money and of course with all the various electronics ncompanies of the world just drooling at the chance of licensing revenue. But especially sony. There was potentially gonna be a problem with this next generation of optical disc.
Without some sort of agreement between all nof. The companies. There could be a slew of proprietary nonsense. Going on and we do not want that in fact in the years leading up to dvd there nwas a competing standard the super density disc.
Which as we explored in this video lives non as the weirdly disc centric logo in the not at all forced secure digital format. Because if there s one thing. Toshiba is good at it s gettin their money s worth from ngraphic design. Anyway as we explored in that video.
We have nthe computer industry to thank for refusing to adopt the next generation of optical disc nunless everybody could agree on what it was gonna be so in 1996. The dvd consortium was formed nby a whole bunch of companies that agreed to all do the same thing and they came up with the technical specifications nof. The dvd. And this was also where dvd ram.
Came from and everything was good with the world. All the way until n1997. When sony did what sony does best and decided they d like to do their own thing. Nthankyouverymuch yes.
In 1997. Sony along with philips and thomson so. Yes it. s not fair to say this was sony s idea .
But let s be real it probably was created the dvd rw alliance. Their mission was to be a thorn in the sides nof the world at large. I m kidding of course their mission was to create a better writable nand rewritable version of dvd and they did it by using what they at least nmarketed as a more robust method of recording just as a quick recap commercially made discs nare molded or pressed with teeny. Tiny pits and lands on their inside.
Reflective surface nwhich. When you shine a laser at cause. The reflected light to come back at two different nintensities thanks to destructive interference caused by the depth of the pit this change in intensity can then be decoded nas digital information with a recordable disc the effect of the npits is recreated by burning tiny spots onto a field of heat sensitive dye. The spots that get heated by the writing laser ndarken and this means that when read back the dark spots nabsorb.
Some of the reading laser s light producing the same effect as a pit in a commercially nmade disc. But a blank recordable dvd or really any nrecordable optical disc is never truly blank for a whole bunch of reasons you can t simply nhave a disc with a layer of heat. Sensitive dye and expect a dvd burner to produce a usable nresult all optical media formats. Regardless of whether nthey re recordable or not rely on some sort of tracking from the laser.
Usually the laser s objective lens is sort nof floating and electromagnets in the laser assembly will move it up and down. As well nas left and right in order to closely track. The stream of pits and lands flying past. It you see the disc being read isn t ever truly nflat.
Neither is the hole in the middle perfectly ncentered and even if it were the spindle holding onto the disc. Sure ain t manufactured well enough for that to matter. Therefore to follow a stream of microscopic npits and lands whizzing past the laser on a flexible. Cheaply made plastic disc ya gotta get a little wiggly.
This was the basis by which the original playstation s ncopy protection worked. Which you can find out more about in this older video of mine. That s the third plug this video must be na record..
And so on a blank disc. You ll find a pre made nguide of sorts. The disc may be blank. But the disc drive needs nto have some sort of target to aim at in order to burn.
The data correctly this target is a microgroove molded into the nplastic of the disc. Which travels the entire length from beginning to end and this groove is wobbly. Some might say wiggly to ensure the disc is spinning at the correct nspeed this track wiggles back and forth at a fixed rate relative to the rotation of the ndisc and it turns out that this wiggling is the nmain thing separating the dashes from the pluses dvd rs use a wobbling frequency of. 1406 kilohertz nwhereas dvd.
R uses a frequency of. 8174 khz that s way more hertz but in addition to being objectively wobblier dvd r. Changed how the addresses on the disc are pre recorded or rather it used a suspiciously similar nmethod to that which our old. Friend.
The cd r used in a cd r. That wobbling is frequency. Modulated nso. That it not only serves as a speed reference and target.
But also encodes at what point nalong the groove. The drive is writing this is called the absolute time in pre groove. Nor the atip on a dvd r or rw. The same general method nis used.
Although it is called address in pre groove or adip to make it less obvious nthat. It s the same thing and the address information is bi phase modulated rather than frequency modulated knowing where you are along the discs s nlength is helpful for ensuring the data is being recorded in the right place and not njust at the correct pace. This is especially helpful for when you want nto burn more data to a disc at a later point. But the original flavor dvd r.
As envisioned nby pioneer. Only used the wobble for maintaining pace its wobble was constant with no modulation nat. All for positional information. A series of so called n land.
Pre pits were moulded into the groove. At various points. So rather than getting. A constant positional nreference from the adip.
A dvd dash r. Only gives absolute references periodically and nso. A drive writing to one relies on counting the wobbles between the land pre pits to maintain npositional awareness now that worked but sony and philips apparently felt that nit wasn t precise enough for their liking by going with the adip. Which again is the nsame basic idea as the atip used previously in the cd r which.
nby. The way who developed that oh nsony and philips. Look at that the dvd r and dvd. Rw allowed a drive writing to it nto know more precisely where it was writing.
Which to the end user meant not a lot there were some very small differences to nbe seen such as the fact that the r varieties. Needed more of a buffer between sessions nand thus waste a few megabytes between each one. But really that s probably the only nsignificant difference you might notice as a user. If you even do if this sounds like sony and philips.
Felt nthat the land pre pit method. That pioneer had come up with for the dvd r. Wasn t ngood enough for some arbitrary. Reason.
And decided that a much better method would be nthe one. They themselves had created for the cd r in 1988. That s because that s probably nexactly. What happened at least to my ears.
It seems more than a little suspicious to nme that two of the founding members of the rw alliance. Happened to be the same two nthat wrote the atip specifications in the orange book about a decade before but perhaps. I m being a little too conspiratorial now it may not seem like it. But this created nan actual format war at least briefly it took the alliance.
A pretty long while to release nthe plus standard. It didn t come out until 2002. But these discs had no compatibility with npreviously..
Existing recorders. Because dvd discs. Didn t have land pre pits. A drive designed for dvd r.
Wouldn t know what to do with one. And thus couldn t burn to it. And. Since a dvd r disc.
Had a constant wobble. A drive made for dvd r. Would have the same lack of direction and couldn t burn to it a frustrating problem. But also a very easy to solve problem because nit was really just a matter of software.
There was no reason. A drive couldn t write nto both it just needed to know how to handle both nthe adip of the dvd r and the land pre pits of r. The actual burning process is the same and so is the finished disc to any dvd player or other drive it s just a slight technical difference nthat separates the two formats. But since we re dealing with licensing that makes all the difference for a rather brief time you might have come nacross a drive which paid its dues to the dvd consortium now the dvd forum by the way but not to sony and philips and their so called alliance you couldn t use this amazing dvd media nthat sony is trying really hard to convince you is better and maybe you bought a drive from sony that nthrough sheer spite and perhaps their own financial incentives didn t support dvd media and you were stuck with the plus.
But this was stupid and everybody knew that nso thankfully dvd multi drives quickly appeared on the market which just went ahead and paid nboth the allaince and the forum. So they could write to both as early as 2004. Just two years after nplus made it to the market you pretty much didn t need to care. If you were using dvd media or dvd media.
Yet both were still available and still are why well because anything made before 2002. Can t nwrite to discs. And because the alliance apparently did a nfairly good job. Convincing people that plus had its pluses so it became fairly popular one plus.
That plus may have legitimately had nwas that the discs were cheaper to make this could have been the entire reason sony nand philips broke off from the forum to form their alliance looking through some older articles on whether nyou should choose plus or as was often incorrectly called n. It seems that plus discs nwere cheaper and this kinda makes sense. The adip was molded into the plastic just nlike. The atip was so really a dvd r is the same exact thing.
As a cd r. But with different dyes and construction. The land pre pits on a dvd r were likely nmore complicated to manufacture. They are really really tiny it seems they are much smaller than a pit non a commercial disc in fact they were intended to be so small as to essentially be invisible nto.
A drive reading a disc with data on it they would only be the faintest of blips ndetectable. Only when the disc was blank. It may have been the case that these tiny nstructures required more precision and thus the discs were more expensive to produce than nthe dvd plus format. But at least today the pricing between the nformats is virtually identical whether or not manufacturing cost was the reason.
Sony and philips went and threw the orange book at pioneer. It s clear that this was mainly a format war of spite. The dvd forum refused to accept dvd plus as na legitimate form of dvd for some years. And this led the dvd rw alliance to make their nown logo since they couldn t use this one and the geniuses over there decided to make nthis their logo.
So these dvd r discs from philips. Which nare not rewritable nevertheless contain this rw badge on them that s not confusing at all but in january of 2008. The forum gave nin and said fine you can be a dvd. So i guess at that point the format war was nofficially over this really was the dumbest format war.
Because nit wasn t ever really a thing. It was all just technicalities aside from really early adopters. It didn t naffect consumers. Other than being mildly.
Confusing. Now dvd. Plus is claimed to have a number nof. Advantages over dvd dash.
One of which is that you don t have to keep nyourself from saying minus every time you see this really we should just be calling them. But whether those actually mattered to anybody nis highly debatable for instance one limitation of dvd. Media is that it only had the space for 7088 unique power calibration. Events meaning you could only record to a single.
Ndisc. 7088. Unique times is my sarcasm coming through strong..
Enough. Dvd. Plus increased that to a cool 32768 times. Yeah real good real factor of two and thanks to the more precise adip and a nfew other.
Technical technicalities . It. Is possible that dvd might be on the whole nmore reliable than dvd . But it s hard to know.
Which of sony s er. The alliance s various claims regarding its betterness are objectively true and which nare just marketing jaunty music. These words aren t important right now. Yes.
Let s get back to it because and here s the thing i want to nstress again the only differences between the two formats can be found when the disc nis being written to once the data has been laid down the adip nand. The land pre pits are irrelevant. And that means that some of plus s claimed nadvantages. Just don t matter for some applications for instance say you re using your computer nto make a bunch of mastered dvd video discs of your home movies to watch in a dvd player those discs will be burned in one fell swoop nso.
The addressing advantages of the adip in a dvd. Really don t apply if you re using a disc like a flash drive nand burning. A bunch of small files to it a dvd r might have been a better choice. But honestly.
It s hard for me to say that nwith confidence. I mean at this point. It s not like it nmatters anyway. But the only way to determine if dvd was more reliable would be to compare nfailed burns or other mishaps with those of dvd .
If you were doing that back in the day. Let us know in the comments and we ll see if there really was a difference. But as far as practical differences to nthe consumer for the most part there weren t any there really wasn t anything plus could ndo that dash couldn t it was all down to technical minutia. But since there was a time when you could npurchase a disc drive or dvd recorder which only worked with one or the other both remained non sale needlessly confusing the majority of us with multi compatible drives.
And giving sony. Yet another licensing income nstream. Presumably maybe not but they are sony well thanks for watching since this is a video about media types and nthere are surely two camps. Which ardently prefer one over the other i m sure the ncomments will be completely harmless for what it s worth for many years i used nthis trusty panasonic dmr es40v for making dvd copies of vhs tapes for my family and nothers at least for that application dvd r.
Nseemed to be less of a fuss than dvd r. But maybe this is some sort of outlier and really this is why this whole format war nwas. So dumb. This is from 2004.
And it supports plus dash nand ram. Given that there wasn t anything unique nyou could do with plus its existence is a little frustrating. Perhaps it was more reliable and articles nof the time suggest that it was but unless somebody did some sort of study. Comparing nthe reliability.
My experience suggests the difference was marginal at best and again. The technical differences only nmatter when the disc is being burned. Once the data is on there the adip or the nland pre pits are completely invisible. Unless.
Of course. You ve designed some sort nof copy protection. Which looks for them on a disc to determine if it wasn t original. Which was a thing maybe i should make a video about that confusingly smooth jazz hi clears throat before we get too ff before we get too nfar i d like mmhm bleh and their rewritable formats of cou ahh versions oooh then there were also weird one offs then there was the dbdb ahhh.
We will harness the third dimension and stick a second translucent data de uehhhhh just as a weird noise just laughs. It seems more than a little suspicious to me that the two founding blergh. Two of the tiny pits and lands on their inside reflective surface. When you shine.
A la that wasn t the end of the sentence. Not gonna lie the bloopers weren t that great this time were they i mean. It s nice for my benefit. When there aren t a lot.
But it sure makes the end less fun note to self nscrew up more bwaaaaaaaa. ” ..
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