Re: How to verify newly burned disc

Hi, i wrote: > > > where they [ASUS] expect us to still find M-Disc DVD+R media. Michael Lange wrote: > > 10 4.7 GB discs at 85.11 € + 7.31 € for shipping from Japan :-) > > Australia, 5 discs for "~" 21.74 € + ~ 42.97 shipping Wonders of globalization. > > the "killer" bargain: 10 Verbatims f

Re: How to verify newly burned disc

> The first hit at ebay.de when searching for "m-disc dvd" shows an offer > for 10 4.7 GB discs at 85.11 € + 7.31 € for shipping from Japan :-) [...] > There is also an offer from Australia, 5 discs for "~" 21.74 € + ~ 42.97 Hmm... so that's in the order of about 1 €/GB >From a quick look at SSD a

Re: How to verify newly burned disc

Hi, On Fri, 02 Jul 2021 21:22:00 +0200 "Thomas Schmitt" wrote: > Hi, > > i wrote: > > ... > You would need a filter program which takes care not to read > > more ... > than ~ 20 MB/s. > > Michael Lange wrote: > > I tried that, but as it seems without any effect on the drive's speed. > > Maybe

Re: How to verify newly burned disc

Hi, Greg Wooledge wrote: > Audio CDs do not have a file system. There's nothing to mount. There > are no ".wav files". Correct. Further the CD-DA sectors are not readable by the usual Linux block i/o. dd(1) and write(2) will throw error. Reading is done by special programs which use the SCSI co

Re: How to verify newly burned disc [Was: Fatal error while burning CD]

On Fri, Jul 02, 2021 at 10:04:04PM +0100, Richmond wrote: > Greg Wooledge writes: > > Audio CDs do not have a file system. There's nothing to mount. There > > are no ".wav files". > Using Caja file manager I have put in the localtion bar (or rather it put in) > > cdda://sr0/ > > This shows me

Re: How to verify newly burned disc [Was: Fatal error while burning CD]

Greg Wooledge writes: > On Fri, Jul 02, 2021 at 08:51:54PM +0100, Richmond wrote: >> Michael Lange writes: >> >> > So, does anyone know about a way to verify the integrity of burned >> > audio-CDs? >> > >> >> This is a bit speculative because I cannot test it, but: >> >> k3b and brasero have

Re: How to verify newly burned disc [Was: Fatal error while burning CD]

On Fri, Jul 02, 2021 at 08:51:54PM +0100, Richmond wrote: > Michael Lange writes: > > > So, does anyone know about a way to verify the integrity of burned > > audio-CDs? > > > > This is a bit speculative because I cannot test it, but: > > k3b and brasero have options to verify written cd. > >

Re: How to verify newly burned disc [Was: Fatal error while burning CD]

Michael Lange writes: > So, does anyone know about a way to verify the integrity of burned > audio-CDs? > This is a bit speculative because I cannot test it, but: k3b and brasero have options to verify written cd. I think you could verify using diff, i.e. diff /dev/cdrom file.iso Or you could

Re: How to verify newly burned disc

Hi, i wrote: > ... > You would need a filter program which takes care not to read more > ... > than ~ 20 MB/s. Michael Lange wrote: > I tried that, but as it seems without any effect on the drive's speed. > Maybe my efforts were not sufficient :) Did you test it with a superfast input like /dev/

Re: How to verify newly burned disc

Hi, On Fri, 02 Jul 2021 12:24:17 +0200 "Thomas Schmitt" wrote: > Hi, > > i wrote: > > > You would need a filter program which takes care not to read more > > > than ~ 20 MB/s. Then the [Pioneer BDR-S09] drive slows down > > > automatically. > > Michael Lange wrote: > > I see, that does not sou

Re: How to verify newly burned disc

Hi, i wrote: > > You would need a filter program which takes care not to read more than > > ~ 20 MB/s. Then the [Pioneer BDR-S09] drive slows down automatically. Michael Lange wrote: > I see, that does not sound trivial, at least to me :) It would be a nice first exercise in about any programmin

Re: How to verify newly burned disc

Hi, On Tue, 29 Jun 2021 12:08:13 +0200 "Thomas Schmitt" wrote: (...) > > > For data-discs I finally found a recipe that seems to > > work in the archives of debianforum.de : > > $ wc -c whatever.iso > > 8237400064 whatever.iso > > $ dd if=/dev/sr0 | head -c 8237400064 | md5sum > > Yes. See als

Re: How to verify newly burned disc

Hi, Michael Lange wrote: > I discovered then that, unless I missed something, that verifying the > success of the burning procedure appears to be surprisingly (to me at > least) non-trivial. In part because of the hardware properties of the various media types and the associated drive firmware be

Re: How to verify newly burned disc [Was: Fatal error while burning CD]

Hi, On Tue, 29 Jun 2021 10:32:04 +0200 Linux-Fan wrote: (...) > I usually go for this kind of command: > > cmp whatever.iso /dev/sr0 > > If it reports "EOF on whatever.iso" its fine :) I think this is similar to that recipe from the debianforum, only that the latter seems to be a little

Re: How to verify newly burned disc [Was: Fatal error while burning CD]

Michael Lange writes: [...] I discovered then that, unless I missed something, that verifying the success of the burning procedure appears to be surprisingly (to me at least) non-trivial. For data-discs I finally found a recipe that seems to work in the archives of debianforum.de : $ cat whate

How to verify newly burned disc [Was: Fatal error while burning CD]

Hi, On Thu, 24 Jun 2021 09:19:43 +0200 "Thomas Schmitt" wrote: (...) > In any case, test it with all your intended use cases, as soon as it > arrives. Thanks, that definitely sounds like good advice (I had no idea that these drives are so cheap these days, no wonder that they leave testing to t