On 28/09/18 8:00 AM, Thomas Schmitt wrote: > Hi, > > Greg Wooledge wrote: >> In the case of the BurnCd page, I actually *do* think that it would be >> of general interest to readers to have a paragraph explaining the limits >> of wodim, and when not to use it. > > Let me try ... hrr-umm ... > > wodim was cloned from cdrecord in 2006. At that time, cdrecord had few > clue about DVD burning and hid this behind a 1 GB size limit of the > free program version. The full size version was not available at all. > wodim got implanted DVD-related code from an earlier cdrecord clone > which hacked around the size limitation. > > But still wodim is handling any DVD as if it was a large CD-R. > This works halfways with DVD-R and, depending the medium state, with > other media after due rejection of inappropriate SCSI commands by the > drive. > But it is awful, specs-wise ! > > wodim is factually abandoned by its cloners Joerg Jaspert, Steve McIntyre, > and Eduard Bloch. Its home page is gone, its change history is gone. > > In contrast to that, the doings of dvd+rw-tools (growisofs) and of libburn > can be justified by the MMC-5 specs. In case of libburn there is even an > active upstream developer (myself). > > --------------------------------------------------------------------- > > But who wants to read about 12 year old quarrels between Debian Developers > and the upstream developer of cdrecord ? > > My way to express the current technical situation was the statement: > > "wodim should better not be used with DVD or BD media." > > which now became > > "Some believe it would be better if wodim were not used with DVD or BD > media. Perhaps so, but there are many variables involved, most > especially burner types and condition, and media quality. > '''Burn on one does not necessarily mean readable on another.'''" > > It is not the opinion of "some". It is the opionion of me, the expert (tm). > > And yes, there are ill burners and media which produce poorly readble > results. But this is _not_ normal. If hardware behaves that way, then > it is to blame, and not the burn program. > (Even wodims's failures are repeatable.) How about something like: "wodim may sometimes work with DVD or BD media, but the results will not meet the relevant specifications." or perhaps s/work/appear to work/ Note: I have no expertise in this area; I'm merely interpreting the comments above. Richard
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