Infoseite // CDs vs DVDs ... Durability



Frage von Rudy01:


Hello,

I have a few short films that I - because of the very short length - could be synonymous to DVD or burn to CD (= MiniDVD).

My question: Viewed in terms of compatibility ... Which medium has a longer shelf life? DVDs or CDs?

I've heard some burned DVDs are working now after a few years ago no longer correct. What about for CDs?

Rudy

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Antwort von Peter S.:

CD's are - in my experience - more durable than DVD's, which is definitely more than six times as much data is burned onto the same area. In addition, the compatibility is much higher than DVD's because there is only one type CD is blank.
MFG Peter

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Antwort von Markus:

Hello Rudy,

on the shelf, I appreciate the situation similarly to Peter.

The MiniDVD will not play of all DVD players. Perhaps you burn the MPEG2 files to backup on a CD-ROM and you create an additional view, copy (= several short films with drop-down menu) on DVD?

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Antwort von Rudy01:

Thanks for the tip! Good idea!

Rudy

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Antwort von Gast:

All wrong!

DVD is not only DVD, there's DVD format that is different and the with the greatest shelf life by the way, synonymous larger than a CD, the DVD-Ram is.

The DVD-Ram has a shelf life of 30 years and that had to be of the manufacturers even legally guaranteed, because different countries have been looking for media that are suitable for long term archiving.
More specifically, you can on the DVD-RAM read in the Wikipedia.

The DVD-Ram has some technical features (see Wikipedia article), the lengths to make it synonymous better than any CD format.

In addition, the DVD-RAM is a standard standardized by the DVD consortium and is expected to play after years synonymous with any standard DVD drive, which was hergestellet after the adoption of this standard.

Who as an archive medium, of course, relies on this kind of bullshit like the DVD-RW, DVD + RW, DVD-R or DVD + R is your own fault, these are only media for the meanness is Geil consumer has no idea.


Of all the currently available storage medium is the DVD-Ram clearly the winner, which can play DVD-Ram only by Rome MO (magneto optical disc) will be surpassed, but that play no role in the mass market anyway, and certainly not in the editing area.

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Antwort von AndreasBloechl:

We always hear 30Jahre for DVDRAM, has an after 30Jahren DVDRAM play without such a mistake?
I trust that as little as the other media. It is indeed synonymous hard disks that keep 10years and again, some only half or so. What are we to believe ??????

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Antwort von MiXMaster:

"AndreasBloechl" wrote: We always hear 30Jahre for DVDRAM, has an after 30Jahren DVDRAM play without such a mistake?
I trust that as little as the other media. It is indeed synonymous hard disks that keep 10years and again, some only half or so. What are we to believe ??????


You can not because of bad experiences in the DVD-/ + RW close to the DVD-RAM,
because the DVD-RAM is already technically interpreted differently and has some technical features that the other two have not.

These last for:
1. The Sektorierung:
Quote:
Sektorierung
The media of DVD-RAM are directly with the naked eye of other DVD versions distinguishable by their Sektorierung that are visually and scattered many small rectangles on the back of a DVD-RAM show (see the first figure above). The Sektorierung serves Usein higher data security.

Source: de.wikipedia.org
A Stillimage, which shows the Sektoierung is available here:
http://de.wikipedia.org/wiki/Picture:DVD-RAM_Detail_Sectors.jpg

The defect management:
Quote:
Defect Management
The DVD ± RW has no defect management. The DVD-RAM, however, has proven the same defect management like a hard drive: If a memory location (sector) on the DVD-RAM is not writable, so this place is marked as crashed and the content stored elsewhere. The defect management of the DVD-RAM is very reliable, because, as with the hard drive of the drive electronics is made. For DVD ± RW offer the software manufacturer of the burner programs are just a workaround for the lack of its defect management. This is after burning a DVD ± RW unnoticed place on an optional reading-burning errors. The subsequent verification of the DVD ± RW is a temporary solution, because in case of error, the error can be corrected and the DVD ± RW media discarded and all contents on a new DVD ± RW disc must be burned. The defect management of the DVD-RAM can be simplified as synonymous "with automated verification call error" because it already takes place during firing.

Source: de.wikipedia.org

3. Respected lifetime of 30 was required by law, so that the DVD-RAM
comply with the requirements for archival media can:
Quote:
Life
The DVD-RAM holds at least 30 years. This long period was foreseen already in the specification to comply with statutory requirements for archive media can.

Source: de.wikipedia.org

4. higher rewritability:
Quote:
Rewritability
The DVD-RAM is about 100,000 times with their changeability as nearly as often as rewritable. In contrast, a DVD ± RW at best 1,000 times rewritable, in practice, often only 50 - to 100-times.

Source: de.wikipedia.org

Furthermore, the defect management is an integrated controller that is built into the DVD-Ram Burner advance, in turn, guarantees that no buffer overflow can occur, such as by the DVD-/ + RW can be the case when the CPU is again very heavily used .
The separate controller offloads the CPU and does the paperwork and concurrent review of complete Bufferoveruns are thus excluded.

What's more, when the DVD-RAM by the auto defect management held a verification of the written order to ensure that the data were written correctly synonymous to the DVD-RAM.
This verification must be on a DVD-/ + RW switch only manual and a defect management has been synonymous not here.

The life in the laboratory by test conditions such as rapid change between warm and cold, fast rotating disk with the rapid exit s.and, tested high UV light intensity and similar procedures.

The durability of aircraft wings are considered the way, with similar tests on

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Antwort von MiXMaster:

Respectively. price-/Datensicherheitsverhältnis.

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Antwort von MiXMaster:

And if you do not trust the DVD-RAM, then you ought to contact the MO-ROM than on hard disks.

The MO-ROMs are synonymous have been 15 years of service and even a data of more than 70 years.

The difference between the MO-ROM and DVD-RAM is the writing process.
The DVD-RAM is the change in phase procedure described (by the way applies to all other variants, such as CD-RW, DVD + /-RW too).

In Rome he MO-bits (which can be represented as mountains and valleys on the media) mechanically after the relevant body was heated with a laser or raised and lowered by a magnet.
The laser provides the appropriate agency Point (which is supposed to represent one bit) to a temperature that makes it possible that you can raise this point in a mechanical way with a magnet or decrease,
s.end we have established a medium which, in principle, closely resembles a pressed CD.

This property of the MO-ROM offers the highest security of all known dezeit rewritable storage technologies for digital hardware.

So, go hard drive, if you do not trust the DVD-RAM, then you must take the MO-ROM.

Unfortunately, it has only a few minor disadvantages compared to the DVD-Ram.
1. It does not fit as much data on a 3.5 "medium such as a DVD-Ram.
There is a 3.5 "medium only about 2.3 GB

2. The drives and media are seen in the ratio is very expensive.
http://de.wikipedia.org/wiki/Magneto_Optical_Disk

3. It is questionable whether even after years of matching drives for its media, or whether they get acquirable still at an affordable price, or expensive individual productions have to be paid.
This problem does not have the DVD-RAM, because thanks to its penetration and thus the mass of available DVD-ROM drives and DVD Burners (at least to read this format) can, and backward compatibility in future HD-DVD drives, it is very unlikely that one in 30 years, no suitable reader to be acceptable to the DVD-RAM is more.

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Antwort von AndreasBloechl:

Most of what you here or postet of Wikipedia is, it is reported only for errors on the disc. I am concerned rather with the durability of the material or the material so s.wann subsides so that the data are no longer identifiable.
For errors after the burn I can on a test example NeroTool or kProbe or how they are all synonymous heisen leaving relatively well (nicht100% pure), but then subsides s.wann the durability of the burner or drive do not get along because there are no real test in my opinion.
I sure as my DV tapes on tape twice, once on board, and twice on DVD + RW and am not sure whether time can develop a real mess and I can copy all the data. For JPG it is the same, because I even safe at the same time on three plates.
But I am because of all the solutions to it vorschlät me there, still not sure.

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Antwort von MiXMaster:

The structure of a DVD-Ram will change during normal storage than under two conditions.

1. The DVD-RAM has a manufacturing fault and has saved the Manufacturer s.Schutzlack or glue.
That is, the oxygen can attack the Page of the data layer and reinfressen themselves into.

2. By exposure to light, thus changing the UV light with time, the data layer.

Against Method 2 will help not to suspend the DVD-RAM for an extended period of the sun. Therefore, it is best to keep up in a dark container such as a closet. That should make it but anyway with all optical media like that.

Method 1 and probably only helps against which one creates duplicate backups and not exactly the cheapest of the cheapest media used Manufacturer.
You should also evaluate his backups at regular intervals.
The Sauerstofffraß is in fact visible.
Anyone who has views an AOL CD, which can then watch most.

So these are all the possible errors that you either avoided altogether (see may 1 and 2) or very unlikely (see 1) are.

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Antwort von brennmeister:

as one of the first DVD Burner, I've bought some time and therefore had to do with DVD, I can say without a guilty conscience, that DVD has a pretty good possibility, as far as the storage shelf.

I mitlerweile s.The 30 - 40 different blanks and s.The 15 different burners tested on heart and kidneys.

I have a few hundred tests completed (error measurements at various intervals) and so I know that the world's best combination is a Plextor burner and a Sony disc (+ R AccuCORE synonymous but the older ones).

The worst examples I had Emtec with blanks. Some of which are no longer readable after 2 years. However, synonymous of budget or Sunstar or 3a media is definitely not recommended.

Verbatim is also not as good as one often gets to the ears. use (low speeds helps a little)

But if you switch this combination between Plextor and Sonyverwendest, you have a shelf life of at least 5 years.

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Antwort von AndreasBloechl:

@ Guest
Yes what are you writing so true in general for all blanks which no preference for one format.

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Antwort von MiXMaster:

"burning masterful" wrote: as one of the first DVD Burner, I've bought some time and therefore had to do with DVD, I can say without a guilty conscience, that DVD has a pretty good possibility, as far as the storage shelf.

DVD is not the same DVD.
Which is it because the DVD format you have tested?

Quote:
I have a few hundred tests completed (error measurements at various intervals) and so I know that the world's best combination is a Plextor burner and a Sony disc (+ R AccuCORE synonymous but the older ones).

Ah, so DVD + R

Quote:
But if you switch this combination between Plextor and Sonyverwendest, you have a shelf life of at least 5 years.


Plextor Burner may have been used to good times as if it were only CD-burner, but now they are bad because they can describe any DVD-RAMs.

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Antwort von Markus:

"" Anonymous guest, "" wrote: All wrong!

DVD is not only DVD, there's DVD format that is different and the with the greatest shelf life by the way, synonymous larger than a CD, the DVD-Ram is.

Well, it's true that the DVD-RAM has a better shelf life than the DVD ± R (W), but if here in the forum of "DVD" is mentioned, then the user just that my DVD ± R (W). Seen here is not "all wrong".

I suppose that is DVD-RAM many "weird" or simply unknown to clear (usually is the one from the other), especially for support because not all DVD-Burners, the RAM.

If you own a DVD recorder to be called, certainly knows the benefits of DVD-RAM cartridge, and especially the version with special protection against external influences. The fact that this medium is a possible alternative to data security, we had already established:

-> VHS / DVD recorder or PC?

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Antwort von Billie:

Hi,
after I burn my videos so far only on DVD + RW, mainly because I can use these blanks synonymous for my DVD recorder, I get to reading these posts to the conclusion that my videos would be better off on a DVD-RAM.

My research on Wikipedia has made me more confused than smarter ;-) (formatting, copying, packaging, etc. ..)

Is it really complicated or more expensive?

Greeting
Billie

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Antwort von Markus:

I have used my DVD recorders have always DVD-RAM. These disks are just not as well known as DVD ± R (W), let s, but is just as (and sometimes even better use -> Cartridge, Time Slip).

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Antwort von brennmeister:

"Anonymous" wrote: "burning masterful" wrote: as one of the first DVD Burner, I've bought some time and therefore had to do with DVD, I can say without a guilty conscience, that DVD has a pretty good possibility, as far as the storage shelf.

DVD is not the same DVD.
Which is it because the DVD format you have tested?

Quote:
I have a few hundred tests completed (error measurements at various intervals) and so I know that the world's best combination is a Plextor burner and a Sony disc (+ R AccuCORE synonymous but the older ones).

Ah, so DVD + R

Quote:
But if you switch this combination between Plextor and Sonyverwendest, you have a shelf life of at least 5 years.


Plextor Burner may have been used to good times as if it were only CD-burner, but now they are bad because they can describe any DVD-RAMs.


I bought DVD + R,-R, Rams, Double Layer + and-, and dual layer tested.

I can not stand always use this combination.

And there are few dominate the Ram burner (LG, a couple of Toshiba), which makes Plextor still far from being bad, because the burning quality of Plextor's really excellent.
Although it has poor audio Dae properties with Cactus Data Shield copy-protected audio CD's, but otherwise the best device I've ever had.

Nec could only with a small assortment s.rohlingen feed, Toshiba is not in the soi read well, but burning it in, LG did not mention cope with higher Brenngeschwindikeiten problems and Sonykommt with Double Layer + R, just to name a few.

The Plextor has perhaps a not so good error, but simply burning tip.

That with the lifetime can be even less accurate (say 30 years, etc.) for DVD's gibts so not so long.
And practice tests are always better than laboratory tests, where blanks with UV irradiated and then calculate the shelf life.

All I know is that the combination of me said no signs of having errors.

MFG burning meister

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Antwort von Helmi2:

"burning masterful" wrote:

All I know is that the combination of me said no signs of having errors.

MFG burning meister


Hmm. I have some experience with burned DVDs.
Definitely not suitable for data backup.

It is much wiser to buy a 45 Euro is a LG DVD burner and RAM back up to "expensive" DVD-RAM to 100 euros as a Plextor and back up to normal DVDs.

Greetings
Helmut

DVD RAM 4.7 GB 3,9 ¬ - DVD + RW 4,7 GB 1,9 ¬
DVD RAM 9.4 GB 7.0 ¬ - DVD-R 8,5 GB 6,5 ¬

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Antwort von mdb:

"Guest" wrote: In addition, the DVD-RAM is a standard standardized by the DVD consortium and is expected to play after years synonymous with any standard DVD drive, which was hergestellet after the adoption of this standard.

Unfortunately, I stumble in the application constantly drives that can not read DVD-RAM. So really only suitable for securing at home, at times take the data somewhere just not before. But you should not do so with his back anyway.

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