[opensuse] Re: CAnt burn iso dvd's
Karl Sinn a écrit :
may be it's for cd's
:-) yes, it's for CD-R. for DVD see the other labtest
Karl anyway I have a direct dvd writing experience. had last month to write 2 different dvd at 100 copies each. I used an old dvd writer only 4x on one computer and bough a new usb dvd writer to use on an other one.
the new dvd writer writed at 8x noname dvd, no speed printed on them. K3b, image writing I had no problem at all with the new writer. All good easily readable dvd's. with the old one, I had approx 10% return. People couldn't read the dvd's. for some I could read the menu (video dvd's) but not the actual chapters. For most of the other returned ones *I* could read them (including on other reader, not the one they where written by)... so I beg they where only difficult to read one some readers. so 8x writing no problems, 4x writing problems probably a compatibility problem between dvd and writer, not necessarily for speed only. The studies seems to say also there are better couples dvd<->writers jdd -- http://www.dodin.net http://valerie.dodin.org http://news.opensuse.org/2009/04/13/people-of-opensuse-jean-daniel-dodin/ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Am Mittwoch, 22. April 2009 14:19:46 schrieb jdd:
so 8x writing no problems, 4x writing problems
probably a compatibility problem between dvd and writer, not necessarily for speed only. The studies seems to say also there are better couples dvd<->writers
The age of the writer can also be a problem. I heard from different friends who burn a lot, that after a certain amount of hours of burning the writing quality is going down quite fast. Karl -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Wednesday, 2009-04-22 at 14:59 +0200, Karl Sinn wrote:
The age of the writer can also be a problem. I heard from different friends who burn a lot, that after a certain amount of hours of burning the writing quality is going down quite fast.
Perhaps because they use lenses made of plastic, instead of glass. - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) iEYEARECAAYFAknvH5sACgkQtTMYHG2NR9X1wACcCx+Orko3OAVNu9W+6zmDWX4A Y5cAn0iKgDtEFORpfRUNJ4UPAPUpgN3T =Ga+d -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Wednesday 22 April 2009 08:46:00 am Carlos E. R. wrote:
On Wednesday, 2009-04-22 at 14:59 +0200, Karl Sinn wrote:
The age of the writer can also be a problem. I heard from different friends who burn a lot, that after a certain amount of hours of burning the writing quality is going down quite fast.
Perhaps because they use lenses made of plastic, instead of glass.
Whatever is the reason there is professional class of devices that can be used for mass burning, but the price is also "professional". It is simple as it can be, device designed for occasional burning of one DVD can't handle multiple runs, one after another without damage. It could last long, but with say one DVD per hour. Of course, this one hour time is my opinion, as there is no such data about cheap DVD burners, so take it with grain of salt. :-) -- Regards, Rajko http://news.opensuse.org/category/people-of-opensuse/ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Wednesday, 2009-04-22 at 13:12 -0500, Rajko M. wrote:
Perhaps because they use lenses made of plastic, instead of glass.
Whatever is the reason there is professional class of devices that can be used for mass burning, but the price is also "professional".
One wonders if buying one of those is worth it, considering that when those pesky devices fail you don't know what it is happening, except that verify fails, or worse, read fails a month later or when you send them away. When mine fails, first thing I think is software. - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) iEYEARECAAYFAknvergACgkQtTMYHG2NR9VQYQCfa3hvgm15Rsk0ki6JJ8K9j/v1 lt8AnRXbv+ETmmMJBvH9vpRm2g0PUJfW =gCd/ -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Carlos E. R. wrote:
On Wednesday, 2009-04-22 at 13:12 -0500, Rajko M. wrote:
Perhaps because they use lenses made of plastic, instead of glass.
Whatever is the reason there is professional class of devices that can be used for mass burning, but the price is also "professional".
One wonders if buying one of those is worth it, considering that when those pesky devices fail you don't know what it is happening, except that verify fails, or worse, read fails a month later or when you send them away.
When mine fails, first thing I think is software.
-- Cheers, Carlos E. R.
We are talking data here not multi-media and somewhat different rules apply between the two usages. Most of these devices are targeted at multi-media usage or commercial data media (and I suspect the latter are not so much burnt as printed). While multi-media optical formats are designed to handle data loss by a combination of low level data integrity checks and file formats that are designed to handle block data errors. Most file systems do not have the latter protection. Data can be flagged as bad because the block fails the CRC integrity check, (possibly due to the integrity check being incorrect rather than the data being corrupt) and be lost to the FS (or even to some low level data reading software such as dd). RW format media data loss can be unacceptably high after relatively few write operations. Dust, hairs and stray small wildlife can ruin a burn (or read) operation. Ideally CD-RAM or DVD-RAM devices with caddy held media are a lot more reliable as an optical data storage option. (But both media and devices are difficult to find and relatively expensive). Another thing to remember is that DVD and CD are different low level formats and CD supports some data descriptors that DVD does not. (This potentially could cause problems on some devices if CD image is burnt to DVD media or vice versa). - -- ============================================================================== I have always wished that my computer would be as easy to use as my telephone. My wish has come true. I no longer know how to use my telephone. Bjarne Stroustrup ============================================================================== -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iEYEARECAAYFAknwMcUACgkQasN0sSnLmgLCXwCg8fdjTTZtxbkS83bWDbI3RpU6 mUwAn1R380cPRKLLNJ0DjY6AFnk1LA+n =iFqH -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thursday, 2009-04-23 at 10:15 +0100, G T Smith wrote:
Carlos E. R. wrote:
On Wednesday, 2009-04-22 at 13:12 -0500, Rajko M. wrote:
Perhaps because they use lenses made of plastic, instead of glass.
Whatever is the reason there is professional class of devices that can be used for mass burning, but the price is also "professional".
One wonders if buying one of those is worth it, considering that when those pesky devices fail you don't know what it is happening, except that verify fails, or worse, read fails a month later or when you send them away.
When mine fails, first thing I think is software.
We are talking data here not multi-media and somewhat different rules apply between the two usages. Most of these devices are targeted at multi-media usage or commercial data media (and I suspect the latter are not so much burnt as printed).
No, I was only talking of data dvds. - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) iEYEARECAAYFAkny/yMACgkQtTMYHG2NR9XE9ACeN9xTcy+YWaqS/FdCxqdjlWAM QYgAoIfYqAjkDFGJlC6Jv6gZV8LDB4iE =KO+J -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Saturday 25 April 2009 07:16:31 am Carlos E. R. wrote:
We are talking data here not multi-media and somewhat different rules apply between the two usages. Most of these devices are targeted at multi-media usage or commercial data media (and I suspect the latter are not so much burnt as printed).
No, I was only talking of data dvds.
The word is about devices. Most of burners in personal computers today, specially cheap ones, could be designed to be good for multimedia, which has much higher tolerance to errors. This is the fact that I overlooked for a long time because in CD burner times no one would come on idea to use multimedia CD devices in computers, but it appear that time has changed. If you see computer prized as "multimedia", or anything that includes it as a primary use, better don't touch it. This probably includes all models that have only low price in mind as a design goal. -- Regards, Rajko http://news.opensuse.org/category/people-of-opensuse/ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
participants (5)
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Carlos E. R.
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G T Smith
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jdd
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Karl Sinn
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Rajko M.