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Re: Wodim: How to read from stdin?



Joerg Schilling wrote:
Bill Davidsen <davidsen@tmr.com> wrote:

This is a limitation of cdrecord and programs derived from it. The growisofs program knows how to do this for DVD but can not do it for CD (one of my problems). In your case you can know the size of the image in advance because you have it. In fact, I wonder why you don't just burn it direct.

Growisofs does not write in SAO mode, this is the reason why it can do things that do not work the easy way on SAO mode.

In my case I have a data stream of 400-500MB which I wish to burn to CD, but because I can't know the size in advance and don't wish to save it for reasons I won't detail, I am forced to use growisofs and DVD for these little data sets.

You are of course not forced to use growisofs. Cdrecord will work for you too
if you use it the right way... there is e.g. the -stream-media-size size
option for mkisofs and there are plenty of other methods.

This is not an ISO filesystem, before or after burning. What is needed is a mode to read stdin until end of data, pad as needed and close. There are many interesting formats beyond ISO-9660.
Mr Schilling noted that there seems a way to do this in some modes, but he provides no information on it. He's probably right that it could be done, but doesn't want ot say how for whatever reason.

Sorry, but this is nonsense. The way it can be done is obvious to anyone
with some basic skills in CD/DVD/BD writing. The reason why it is not yet implemented in cdrecord is just that there are many more important things to do
and that it would not work on all 30+ platforms that cdrecord supports.

I don't need it on 30 platforms, I need it on one. Fortunately growisofs provides that, since cdrecord seems not to be able to do so.

--
Bill Davidsen <davidsen@tmr.com>
 "We can't solve today's problems by using the same thinking we
  used in creating them." - Einstein


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