Re: DVDs are worse than CDs

Happy New Year!

news:alt.video.dvdr has a thread called "Why do DVD+R recordings go bad?" 
with 105 articles.

That thread became started by Nomen Nescio on
Date: Fri, 12 May 2006 03:00:06 +0200 (CEST)
with:
|---------------------------------------------------------------------------|
|"I've got some +R discs that were recorded about a year ago starting to go |
|bad.  The DVDR that recorded them doesn't even recognize them anymore.  A  |
|separate player machine reads some of them but not others.                 |
|                                                                           |
|What's going on here?  I thought these discs were supposed to last 100     |
|years.  Maybe the plastic substrate will, but the image emulsion doesn't   |
|seem to hold the data, at least on my discs.  Is this an inherent defective|
|technology?  I've never had trouble with CD-R discs but DVD has been a big |
|headache and I'm ready to throw in the towel after a lot of money and time |
|wasted."                                                                   |
|---------------------------------------------------------------------------|

An example contribution to that thread is:
|----------------------------------------------------------------------------|
|"It isn't a very stable technology. The dye layer on the disks are affected |
|by many things. Things like heat, light, humidity and even manufacturing    |
|problems like they don't get it even, etc.                                  |
|                                                                            |
|Unlike commercially pressed discs that not only don't use dye (they use thin|
|layers of metal often aluminum, but sometimes other things). Also           |
|commercially pressed disks have another clear coat of protection over the   |
|data layer, something that consumer burned discs DVD +/- or CD doesn't have.|
|All of this adds up to a media that isn't very long term stable. Nothing    |
|like the 100+ years that manufacturers were touting early on. Now they don't|
|even mention life spans on these discs.                                     |
|                                                                            |
|They only thing you can do is to make sure and buy good discs and this      |
|doesn't always mean name brands. Most name brands like Sony, Maxell, etc.   |
|don't make their own discs any more, someone else does and they just slap   |
|their names on them.                                                        |
|                                                                            |
|For long term storage I use Delkins Archival Gold discs. The write layer is |
|made from gold and it has an anti-scratch layer. They claim 100 year life   |
|for DVD and 300 for CD. We will never know if this is true and won't even   |
|know if they are better than the other discs for a few years. But, I figure |
|they are a better bet than the ones I know won't last.                      |
|                                                                            |
|I also suspect that the higher writing speed plays a part too. I have more  |
|usable discs from my 1X CD-R drive than I do from any other drive I have    |
|had. I think the slower speeds gives a better write, but that could just be |
|a coincidence too.                                                          |
|                                                                            |
|Robert"                                                                     |
|----------------------------------------------------------------------------|

Another contribution by him has:
|--------------------------------------------------------------------------|
|"[. . .] DVD's are almost  6 years old for consumer                       |
|burning give or take a little bit. I do by this for dual layer discs which|
|are proving to be a nightmare beyond compare for me.                      |
|                                                                          |
|[. . .]                                                                   |
|                                                                          |
|I think 90% of the time when you buy a blank DVD to burn on you aren't    |
|getting a quality disc even when you spend a lot for it.                  |
|                                                                          |
|R"                                                                        |
|--------------------------------------------------------------------------|

A different person contributes:
|----------------------------------------------------------------------------|
|"Buy Taiyo Yuden.                                                           |
|                                                                            |
|a.. Widest record and playback compatability                                |
|a.. 100 year durability data integrity guarantee                            |
|a.. Zero wave distortion                                                    |
|a.. ISO 14001 certified manufacturing                                       |
|a.. Lowest Bler, E12 and E22 error rate in the industry                     |
|a.. Lowest jitter and deviation levels in the industry                      |
|a.. No stacking ring                                                        |
|                                                                            |
|The description column shows capacity in GB, top speed and the color of the |
|print surface                                                               |
|                                                                            |
|The TYDVD8TW white surface DVD-R's are hub printable and certified for      |
|EVEREST machines                                                            |
|Priced per piece                                                            |
|                                                                            |
|These are the best , most stable, most affordable discs in the world. I have|
|yet to make one coaster since using them. Good luck.....                    |
|                                                                            |
|                                                                            |
|Carl"                                                                       |
|----------------------------------------------------------------------------|

A different man contributes:
|----------------------------------------------------------------------|
|"I think we need to accept the fact that if we want to save things for|
|20+ years, we'll have to periodically change the media they are saved |
|on.                                                                   |
|                                                                      |
|                                                                      |
|                                                                      |
|--                                                                    |
|Tim."                                                                 |
|----------------------------------------------------------------------|


Alas this crossposting is only to news:alt.comp.periphs.cdr and 
news:comp.publish.cdrom.hardware because of a restriction of a newsserver 
which I am recently using.

Alas I pay an Internet-Server Provider which refuses to run a USENET 
server. I think about complaining to a regulator or switching to a 
different service provider, but for now I need to resolve too many other 
problems.

Ex-employers use USENET servers so I used to use them. Recent employers do
not own USENET servers or I did not find out about them.